Why does it need to be an audio file? Many CD players these days will play MP3 files. Almost any computer is capable of playing them back.
If you really want to burn it to 17 CDs, it's very easy in any file editor to both cut it up into separate files and convert the pieces to WAV.
Do you have enough disk space to hold 17 x 700MB of data? If not, you can still do it, just in stages -- make a few WAVs, burn them, erase them from your hard drive, repeat.