I have a 71.4MB .wma file that shows up as "Invalid file format" when I try to play it. It is 5hr 6min long. Properties say 32kbps, 44kHz, stereo.

Appartently the Rio Car can not play protected wma files. How do I tell if it is protected? It plays on Windoze Media Player 6.04 (the latest available for NT4) and I loaded it via Jemplode 2b11 and my player is at 2.00-beta11.