Further to this: >> It is likely that the upgrade has reset your libray databse, including the OpenMG DRM. While the OpenMG (ATRAC3/+) files still remain on your hard disk, they will not play back in SonicStage since the DRM licences have been erased. If this is the case, then, unfortunatley, there is no solution for you. You'll need to re-rip the tracks into your library again. << I have a similar problem although I arrived there via a different route. For a reason I won't go into, I had to completely reinstall my OS, applications et al. To do this I used a new hard drive and carefully ensured that I moved across all my email folders, shortcut settings and all the useful things you do to customise your PC over the years. Note I said, moved and not copied. I moved my audio files (packets across) but didn't know about DRM. I then found that I could see my music library on the PC but was not allowed to play any of it. I tried to copy backwards from my NW-HD1 but that also was not allowed. After a couple of weeks playing around I relunctantly decided that I would have to live without my music collection on my PC (not too bad, as I still had it all intact on the HD1). This morning I just tried to copy a new CD across to the HD1 and went through the normal process with my "new and empty" Sonicstage. Imported the CD, accessed CDDB all fine, could play the tracks on my PC too as expected. However, when I tried to transfer to the HD-1 it refused, saying that I must initialise the HD1 before I could copy on any tracks from this PC. Looks like I'm now facing the hateful prospect of importing about 250 CDs all over again unless someone knows how to recover the DRM info from my old hard disk drive. Can someone tell me which files I need to recover from my old hard drive please. Sorry to say that the old hard drive isn't bootable, so I can't run the backup tool against it. Also, sorry (ashamed) to say that I have never run the Sony backup program as I had always assumed that if my computer crashed I could simply copy back from the HD-1 !!!! Please help ?!?!?!?