First off, the addition of ogg and FLAC support has been very appreciated…thank you.
One issue that I have seen is that the Clip & Fuze will not play .ogg files which have any special characters in the title field of the vorbis comments. Some examples which I have tested are parentheses and apostrophes. After removing just these characters using EasyTag 2.1.5 (Ubuntu 8.10), the files play just fine. No other modifications were made to the file. It does not seem to care if there are special charaters in the album or comment field, though…these play just fine.