I did an enhanced cd awhile back for a band's demo cd, containing 3 fade out/fade in demo tunes, band picture, bio and press release. The audio was on track one, so that club entertainment managers without PC's or Mac's could play the audio on any cd player. The ones with PC and Mac's could play the audio and read the press and bio's. Using MS Office Word, I made copies that read on PC and and a Mac version of the bio and press release. The band pic was jpeg, which read well on both PC and Mac OS's. It's as simple as saving the bio to be read on PC in one format, and than saving again in the format "Word 5.1 for Macintosh".
The PC bio extensions were .doc. The press release which also had newspaper pics, I saved in .rtf format. After saving the bio's in Word 5.1 for Mac, those extensions were .mcw. No problems what-so-ever having the pics, bios and press releases read and on both machines and the audio playing on PC, Mac or non computer stand alone cd players. The band's manager included a guide, telling the Mac users to open the .mcw files and the PC users to open the .doc's and .rtf's.
You can do the same thing if the enhanced cd has the audio and video versions of a live tune. Just save the video for PC users as .mpg and for the Mac users as .mov. No need to worry about doing two complete cd versions, one for PC users and one for Mac users. Just multi-session the PC and Mac files on the same cd.