Friday, October 16, 2009

What is the size or time limit on audio cds?

A true audio CD can be at most 80 minutes in total play time. If your recordings are more minutes than that, either break them down into multiple disc sets or modify your project and make it multi disc set (split your discs into one or more).  You can also consider setting your project to a DATA cd (not audio cd). A data cd is not limited by total play time.  It's limited by file size only.  The drawback is that a data cd is for computers only and can not be used in older/traditional cd players.  a Data cd of mps or wav files can easily be imported into iTunes from your computer for example.

In any case:  You should try to make your discs 74 minutes or less to be compatible with most cd players.  The problem is that some audio files can be burned to high capacity discs like ours, but the last track or the last part of a track might not fully play in all cd players.  To be most compatible, try to keep it under 74 minutes.  If we try to burn your audio cd and our system gives us an 'insufficient space' error, we'll have to inactivate the project and you'll have to edit down and shorten the disc, or add a 2nd disc to the set (split it up into another disc).

When you make your .WAV or .MP3 files, they must be in exactly this format (there are no ranges or options).   Then, add them to the zip file in alphabetical order (we recommend you name your files with leading zeroes such as 01aaa.mp3, 02bbb.mp3, 10ddd.mp3, 11eee.mp3 so they sort properly).   

Audio Sample Rate: 16bit
Channels: 2 (stereo)
Audio Sample Rate: 44 khz
Bit Rate: 1411 kbps

Most newer dvd players, game systems (xbox, ps3), cd players, bluray players, car cd players can read mp3 data cds as audio. You can get hours of audio on an mp3 data cd.

keywords: music, band, audio, .wav, mp3, format

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