I was just trying to upload a bunch of MP3 files from my collection to the Rio Central via Emplode. I noticed that a large number of files seemed to be ignored. On investigating further, it seems that files with an ID3 v2.2 tag don't work. If I changed the tag to anything else newer or older, the file worked fine. The 2.2 tag file also worked if I added a 1.1 tag along with it.

Is this a known behavior or something others have run into?