Gapless Cd Burning Software Mac Rating: 5,9/10 3705 reviews

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Gapless playback is the uninterrupted playback of consecutive audio tracks, such that relative time distances in the original audio source are preserved over track boundaries on playback. For this to be useful, other artifacts (than timing-related ones) at track boundaries should not be severed either. Gapless playback is common with compact discs, gramophone records, or tapes, but is not always available with other formats that employ compressed digital audio. The absence of gapless playback is a source of annoyance to listeners of music where tracks are meant to segue into each other, such as some classical music (opera in particular), progressive rock, concept albums, electronic music, and live recordings with audience noise between tracks.

Discs you burn on your Mac can also be used on Windows and other types of computers. Insert a blank disc into your optical drive. If you see a dialog, click the pop-up menu, then choose Open Finder. Select “Make this action the default” if you want to open the Finder every time you insert a blank disc.

Causes of gaps[edit]

Playback latency[edit]

Various software, firmware and hardware components may add up a substantial delay associated with starting playback of a track. If not accounted for, the listener is left waiting in silence as the player fetches the next file (see harddisk access time), updates metadata, decodes the whole first block, before having any data to feed the hardware buffer. The gap can be as much as half a second or more — very noticeable in 'continuous' music such as certain classical or dance genres. In extreme cases, the hardware is even reset between tracks, creating a very short 'click'.

To account for the whole chain of delays, the start of the next track should ideally be readily decoded before the currently playing track finishes. The two decoded pieces of audio must be fed to the hardware continuously over the transition, as if the tracks were concatenated in software.

Many older audio players on personal computers do not implement the required buffering to play gapless audio. Some of these rely on third-party gapless audio plug-ins to buffer output. Most recent players and newer versions of old players now support gapless playback directly.

Compression artifacts[edit]

Lossy audio compression schemes that are based on overlapping time/frequency transforms add a small amount of padding silence to the beginning and end of each track. These silences increase the playtime of the compressed audio data.[1] If not trimmed off upon playback, the two silences played consecutively over a track boundary will appear as a pause in the original audio content. Lossless formats are not prone to this problem.

For some audio formats (e.g. Ogg Vorbis), where the start and end are precisely defined, the padding is implicitly trimmed off in the decoding process. Other formats may require extra metadata for the player to achieve the same. The popular MP3 format defines no way to record the amount of delay or padding for later removal.[notes 1] Also, the encoder delay may vary from encoder to encoder, making automatic removal difficult.[2] Even if two tracks are decompressed and merged into a single track, a pause will usually remain between them.

CD recorded in TAO mode[edit]

Audio-CDs can be recorded in either disc at once (DAO) or track at once (TAO) mode. The latter is more flexible, but has the drawback of inserting approximately 2 seconds of silence between tracks.

Ways to eliminate the gaps[edit]

Precise gapless playback[edit]

As opposed to heuristic techniques, what is often meant by precise gapless playback, is that playback timing is guaranteed to be identical to the source. By this definition, a precise gapless player is not allowed to introduce either gaps or overlaps (crossfading) between successive tracks, and is not allowed to use guesswork.

Apart from accounting for playback latency, the preciseness here lies in treating lossless data as-is, and removing the correct amount of padding from lossy data. This is not possible for file formats with loosely defined encoder specifications and no metadata and therefore no way for encoders to record the duration of extraneous silence.

Approximate methods[edit]

Heuristics are used by some music players to detect silence between tracks and trim the audio as necessary on playback. Due to the loss of time resolution of lossy compression, this method is inexact. In particular, the silence is not exactly zero. If the silence threshold is too low, some silences go undetected. Too high, and entire sections of quiet music at the beginning or end of a track may be removed.

Digital signal processing (DSP) algorithms can also be used to crossfade between tracks. This eliminates gaps that some listeners find distracting, but also greatly alters the audio signal, which may have undesirable effects on the listening experience. Some listeners dislike these effects more than the gap they attempt to remove. For example, crossfading is inappropriate for files that are already gapless, in which case the transition may feel artificially short and disturb the rhythm.[3] Also, depending on the length of untrimmed silence and the particular crossfader, it may cause a large volume drop.

These methods defeat the purpose of intentional spacing between tracks. Not all albums are mix albums; perhaps more typically, there is an aesthetic pause between unrelated tracks. Also, the artist may intentionally leave in silences for dramatic effect, which should arguably be preserved regardless of whether there is a track boundary there.

Compared to precise gapless playback, these methods are a different approach to erroneous silence in audio files, but other required features are the same. However, this approach requires more computation. In portable digital audio players, this means a reduced playing time on batteries.

User workarounds[edit]

A common workaround is to encode consecutive tracks as one single file, relying on cue sheets (or something similar) for navigation. While this method results in gapless playback within consecutive tracks, it can be unwieldy because of the possibly large size of the resulting compressed file. Furthermore, unless the playback software or hardware can recognize the cue sheets, navigating between tracks may be difficult.

It may be possible to add gapless metadata to existing files. If the encoder is known, it is possible to guess the encoder delay. Also, if the compression was performed on CD audio, the original playback length will be an integer multiple of 588 samples, the size of one CD sector. Thus the total playback time can also be guessed. Adding such information to audio files will enable precise gapless playback in players that support this.


Format support[edit]

Since lossless data compression excludes the possibility of the introduction of padding, all lossless audio file formats are inherently gapless.

Gapless Mp3 Player

These lossy audio file formats have provisions for gapless encoding:

  • Ogg Vorbis[notes 2]
  • Speex[notes 2][4]
  • Opus[notes 2]

Some other formats do not officially support gapless encoding, but some implementations of encoders or decoders may handle gapless metadata.

  • LAME-encoded MP3 can be gapless with players that support the LAME Mp3 info tag.[5]
  • AAC in MP4 encoded with Nero Digital from Nero AG can be gapless with foobar2000, latest XMMS2, and iTunes through 11.4.
  • AAC in MP4 encoded with iTunes (current and previous versions) is gapless in iTunes 7.0 through 11.4, 2nd generation iPod nanos, all video-capable iPods with the latest firmware, and recent versions of foobar2000.[6][irrelevant citation]
  • iTunes-encoded MP3 is gapless when played back in iTunes 7.0 through 11.4, 2nd generation iPod nanos, and all video-capable iPods with the latest firmware.
  • Windows Media Audio encoded with Windows Media Player 9 can be gapless with Windows Media Player 9 and onwards.
  • Windows Media Audio encoded with Sound Player Lilith can be gapless with latest Sound Player Lilith onwards.[7]
  • ATRAC on MiniDisc is gapless through the use of TOC (Table of Contents).

Player support[edit]

Optimal solutions:

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  • Apple:
    • iPod classic supports gapless playback of MP3s and AACs from the fifth generation onward[8]
    • iPod nano second generation and later[8]
    • iPod Touch[8]
  • Archos Gmini XS202S
  • Cowon S9 supports gapless playback without software dependency since 2.31b firmware. Most newer Cowon players support gapless playback right out of the box (J3, X7, iAudio 9)
  • Linn Products DS network players
  • All players in the Logitech/Slim DevicesSqueezebox range support gapless playback for all gapless formats (lame MP3, FLAC, Vorbis, etc.). Crossfading is also optionally available.
  • MicrosoftZune supports gapless playback with Zune 2.5 or later firmware, though some bugs remain and occasionally small pops or skips can be heard.[9]
  • Rio Karma and TrekStor Vibez gapless hardware players with no software dependency
  • Rockbox for various digital audio players.
  • Victor Alneo V Series and C Series[10][11]


  • Amarok, for Linux[12]
  • AIMP for windows
  • Audacious, for Linux
  • Banshee, for Linux
  • Clementine, cross-platform.
  • cmus, for Linux and BSD.
  • Cog, for OS X
  • DeaDBeeF, for Linux
  • foobar2000, for Windows
  • Groove Music, for Windows 10.
  • iTunes 7.0 through 11.4 supported as default gapless playback on Macintosh and Windows without having to combine tracks during encoding (a limitation of previous releases). Some users in unusual situations have complained that the one-time analysis is a system-intensive process that can stall or crash computers.
  • JRiver Media Center, for Windows
  • mplayer2, for Linux, OS X, and Windows supports gapless playback of flac when used with option '-gapless-audio'.
  • mpv (media player) for BSD, Linux, macOS, Windows.
  • MusicBee, for Windows
  • Music On Console, for Linux and other Unix-like platforms.
  • Music Player Daemon, for Linux and other Unix-like platforms.
  • Plex, for all supported platforms either through the platform player or PlexAmp [13]
  • Qlab, for OS X
  • Quod Libet, multi-platform.
  • Rhythmbox, for Linux
  • Winamp, supports gapless playback for MP3, M4A/AAC, Ogg Vorbis and FLAC files (since version 5.3).
  • Windows Media Player, has supported gapless ripping and playback of WMA since Windows Media 9. Available on all current Windows machines.
  • XMPlay, supports gapless playback for all format files

Alternative or partial solutions:

  • XMMS2 – has native support for gapless MP3 / Ogg Vorbis and FLAC

See also[edit]

  • Segue, the technique in classical music


  1. ^Taylor, Mark (2003). 'LAME Technical FAQ'. Retrieved 2006-07-06.
  2. ^Robinson, David (2001). 'lame v3.81 and 3.87 beta mp3 decoding quality test results'. Retrieved 2006-08-24. Features a table of encoder delay values.
  3. ^'256734 – precise gapless playback'. Retrieved 7 December 2017.
  4. ^'Speex News'. 2004-07-28. Retrieved 2008-04-25.
  5. ^'LAME Technical FAQ'. June 2000. Retrieved 2012-01-28.
  6. ^'Guides and Sample Code'. Retrieved 7 December 2017.
  7. ^'再生制御'. Retrieved 7 December 2017.
  8. ^ abc'What is Gapless Playback?'. Apple Inc. Archived from the original on 2008-05-08. Retrieved 2008-05-13.
  9. ^'Thread on gapless playback on Zune HD'. 2010-02-25. Retrieved 2010-05-04.
  10. ^Ittousai. 'ビクターAlneo にギャップレス再生・AAC対応の新モデル - Engadget Japanese'. Retrieved 7 December 2017.
  11. ^'【新製品レビュー】'. Retrieved 7 December 2017.
  12. ^'Thread on Gapless Playback on Amarok Mailing List'. 2006-09-06. Retrieved 2007-01-19.
  13. ^


  1. ^Despite this, there are encoders which store the amount of padding introduced in metadata to allow gapless playback. This can only be used if the playback software is able to interpret the metadata information.
  2. ^ abcVorbis and Speex feature gapless support through the Ogg layer. The reference implementation of Speex did not initially ship with gapless metadata support.

External links[edit]

  • MP3 players: Buyer Beware, a description of gapless playback in digital audio players
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Burning a DVD disc is nothing new in this digital world that we are living in today. When it comes to burning a DVD disc, Mac system is widely considered better than Windows or any other operating system because Mac OS can provide a much better user experience with a better design of the interface. If you want to burn a DVD disc on your Mac computer, then you’re probably going to need an external DVD drive because most of the Mac laptops don’t come with an internal DVD drive. Even if you have an internal DVD drive or you have an external DVD drive that is connected to your Mac computer, you still need software to burn a DVD on Mac. We all know that an external DVD drive is nothing cheap to buy, so it’ll be better if we can save some money on software, right? Today we’re going to introduce the top 5 free DVD burning software for Mac, so that you can save your money for burning a DVD disc on Mac as much as possible.

Part 1: Top 5 free DVD burning Software for Mac

Before we start to introduce the top 5 free DVD burning software for Mac, there’s something you should know about the free DVD burning software. As we all know, there are a lot of DVD burning programs that are not free on the market, so what’s the difference between the free ones and charged ones? Well, most of the free DVD burning programs for Mac can burn a DVD successfully, but each of the program has its own flaws or disadvantages, and none of them are perfect. In some cases, the burning is slow or the quality is low, in others there are an unremovable watermark on the output disc or the flaw could be lack of necessary functions. The free DVD burning programs for Mac that you’re about to see here are relatively good among all the free DVD burning software for Mac, but the flaw or disadvantages are still inevitable. So, choose wisely base on your own needs


Burn is the most well-known free DVD creator for Mac that allows you to burn both CD and DVD on Mac. As a piece of completely free DVD burning software, Burn has a lot to offer. It gets ease of use and simplicity of user interface into perfect combination. It’s able to burn all types of files you throw at it like data, audio, video and more. Just by diving into 4 modes: Data, Audio, Video and Copy, you can burn data DVD for backup purpose and burn playable CD/DVD without any hassle. In Copy mode, you’re able to copy DVD files (.dmg, iso, cue/bin, etc.) to DVD too.

Disk Burner

Disk Burner is another great DVD burner freeware for Mac that enables you to create, organize, share and store all of your digital contents to CDs and DVDs. Different from other Mac DVD burner software, Disc Burner not only lets you burn your music, photos, videos and data to DVD, but also pays much attention to the data security. With Disc Burner, you could easily protect your valuable data on CD and DVD. Disc Burner also has a feature of sharing your data with any OS platform users.


Disco was formerly charged for $19.95. The good news for everyone is the program could be obtained for totally free, but the bad news is the program has stopped for updating from July 2011. Although Disco hasn’t seen a great deal of development in recent years, it’s still worth trying if you are looking for a great free DVD authoring software for Mac. The program comes with quite simple user interface, letting you burn playable CD/DVD by dragging and dropping files to the program.


I should say that the DVD burning can never be this simple with BurnX. You even no need to follow a tutorial or a guide to know how this free Mac DVD Creator works. The program lets you burn playable CD/DVD just by dragging and dropping files to program. This software is available for users with the operating system Mac OS X and previous versions, and it is available in several languages like English, Spanish, and French. BurnX Free is a light software that needs less storage than many programs in the category Utilities. It’s a software very heavily used in some countries such as United States, United Kingdom, and Japan.


LiquidCD is a free Mac burning software that can burn almost any CDs and DVDs media. You can burn data, audio, photos and video files with this program. LiquidCD even supports multiple languages including English, French, German, Spanish and Danish. There is also a forum for users to ask and answer questions, but it’s in French.

Part 2: Best DVD burning software for Mac with free trial

As mentioned above, no free DVD burning software for Mac is perfect, even the top 5 best free DVD burning software that we have picked and listed above has their own flaws and disadvantages. So is there another choice that can get a good piece of DVD burning software for Mac and avoid all the inevitable flaws and disadvantages that exist in the free DVD burning software for Mac? Well, I am here to offer you a solution for that, and that is to use a professional DVD burning software for Mac with a free trial.

There are a lot of professional DVD burning programs on the market that offer a free trial of the software. Normally the free trial would cut off some functions of the software, or have a limited using time, but sometimes if our project is not too big, or we just want to make a prototype DVD disc to try it out, then the free trial version can be sufficient for us, and we don’t even have to pay for these DVD burning software. After the free trial, if we find ourselves very into this program, we can pay for that later to have a full version of the software and make our project one step towards perfection.

That best DVD burning software for Mac that comes with a free trial that I am going to introduce you today is called Leawo DVD Creator for Mac. Leawo DVD Creator for Mac can burn almost all kinds of video files like MP4, MKV, WMV, AVI, VOB, BDMV and so on to a DVD disc. It allows you to make a DVD menu before burning to a disc and provides a built-in video editing module for you to do something edits to your video.

DVD Creator

☉ Convert videos like MP4, AVI, MKV to DVD format fast.

☉ Create DVD-5, DVD-9 disc, folder or ISO image without quality loss.

☉ 1-click operation to create photo slideshows and burn to DVD.

☉ Easily editable effects, 2D to 3D conversion support.

☉ Built-in menu templates and edit disc menu with personal preferences.

The best thing about Leawo DVD Creator for Mac is that the trial version of the software contains all of the functions in the full version. The only limit of the trial version is that you can only burn your video in the limited length. This is a little bit troubling if your video is very long, but as mentioned above, if your project is relatively small, and your video is not that long, you can almost use this professional DVD burning software for Mac free.

Part 3: How to burn DVD with Leawo DVD Creator for Mac

If you are interested in this DVD burning software for Mac, I’m going to provide you a detailed guide on how to use this the video morning software just in case you want to know more about this program. Leawo DVD Creator for Mac is pretty easy to use and has clear user interface. Follow the instructions above and anyone can burn a DVD on Mac with ease.

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Step 1. Add videos to DVD creator.

You can import MP4 videos in 2 ways, by clicking the “Add Video” button to load videos and images, or by directly dragging and dropping files to the program. After loading source video files, you could select subtitles and audio tracks from source videos, play back videos, etc. Set the output DVD disc type (DVD-5 or DVD-9), quality and aspect ratio (16:9 or 4:3) at the bottom.

Step 2. Set disc menu

If you want to create disc menu and chapters to output DVD movie, you could choose from the right sidebar. Leawo DVD Creator offers you multiple preset disc menu templates in different themes like Standard, Business, Education, Childhood, Holiday, etc. Also, it allows you to DIY disc menu with your own images and audios. You can edit the texture on the menu page, change background music and picture and so on. Instant preview of the menu is also avilable. If you want no menu, just select “No Menu” option on the right sidebar after you load source videos.

Step 3. DVD burning settings

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After setting disc menu, click the big green “Burn” button to call out the burning settings panel, on which you need to figure out Burn to, Disc Label, and Save to options.

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Step 4 Burn video to DVD

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After the burning settings, click the “Burn” button on the popup burning settings panel to start burning videos to DVD. This DVD Creator would immediately start its work and finish it in a few minutes.