2re wrote:
A bad Windows install wiped a backup partition I had on a single drive 10 years ago.
So you should know that a single backup isn't necessarily sufficent for data it would hurt to lose. No backup at all should not have been an option.
I've managed to transfer all personal files, music, films, e-mail and more onto new HD since 2001. So I'm not ready yet, to keep duplicates of all my media files. Just the vital personal files.
I presume you invested energy in ripping your CD's, organising your library etc. Any hard drive can fail at any time - you might get a warning, as perhaps you've had now, or you may not. If it matters, back it up!
What I'd like to know is how can song nr 3-5-7-8-14 etc in several albums be gone.
I don't know either, perhaps you've turned off most of iTunes warning messages and deleted stuff from the main Music source when you thought you were dealing with a playlist.
Perhaps it was after I updated iTunes and my iPhone?
I don't know. But I know I wont trust iTunes with my media anymore.
I don't let it organise my files but mainly because I object to it truncating filenames on aesthetic grounds.
Moving on... You'll need to find some undelete software - chances are most of the missing files are still on your hard drive, just no longer in the active file structure. Given it's an external drive stop using it until you've exhausted your options for recovery. I've recently used Seagate's File Recovery for Windows on a friend's system which managed to recover the bulk of the data from a partially reformated hard drive. Prices range from $40 to $100's but many such tools are offered in "free to download and test" mode so at least you can check that they can find your missing files before you pay.
There are also tools to transfer files from iPod/iPhone to your computer which might be relevant if some of the missing tracks are still on your phone.
Best of luck,
tt2