I have already reported this problem in another thread and sent a mail to support some 10 hours ago. I understand that PG will currently be swamped, but this appears to be a huge one, so I hope they can get to it really soon.

For what it's worth: clearing the cache and redownloading didn't help. By now I'm pretty sure it's the files on the PG Music server that are corrupt and it's not the download process itself.

Philip