Backed up some stuff on my D:/ drive, reformatted and reinstalled Windows XP Pro on my C:/ drive. Was trying to copy things back from D:/ to C:/ but was getting errors saying it couldn't read from disk. Next time I booted my computer, XP was running CHKDISK and it took a while, was scrolling through, could only read a few things that say things about orphaned files, repairing clusters and stuff like that. But I noticed that some of my MP3s are missing and others are mixed up - some songs jump into other songs for short periods or a couple minutes even. Is there anything I can do to correct this, is there any data recovery software or anything?