I've seen this problem before, SOMe mp3 files aren't REALLY mp3 files
but a DRM protected file that pretends to be an mp3.
I've got a DVD+R disc with around 1200 files on it that came in a used player I bought.
The files are listed as mp3s but they won't play off the disc in my computer.
I can feely copy the files off the disc but they still won't play.
Storing them (temporarily) on my HDD I can look at the and see the files
size but if I attempt to play ANY of the files they ALL sorta "disappear"
and there is a file name and the file size shrinks to 60some bytes.
There is essentially nothing on that disc that I don't already "own"
on a commercially pressed disc, so I regard "cracking" the disc to extract
playable files as an intellectual/technical challenge.
funny thing is the disc will actually play in stand alone DVD player in my
home entertainment system, just not on my computer.
what I'm thinking here is that you are experiencing similar difficulties
because if you bought some of those files from a music service
it's possible they are protected the same way these files I have are.
And it's one of the reasons I prefer buying my music pressed onto
a plastic disc rather than as a data stream from a commercial site.
BTW, site glitch... I made essentially the same post into this topic about 4hours
ago and my post disappeared.