Ok, here we go.

I guess I found out the best option for burning a CD-ROM for that lousy Civic-Nav-System. Look at the picture below.
Album-Info: Limited to 27 letters/digits.
Track-Info: Limited to 32 letters/digits.
Lower half:
Filename-Info: Limited to 27 letters/digits.
What you have to do is to burn a CD-ROM (I've Nero 8 in use) with the filesystem ISO9660 (NOT joliet!), Mode 1, ASCII. The filenames on that disc will be automatically cut off to 27 places plus extension. PLUS: switch off the ID3v2-tags in your MP3-Tracks. The system does only handle ID3v1-tags correct. I think that an additional ID3v2-tag could corrupt it.
Please tell me if it worked for you.
lev