I'm using WinXP and I've recently converted my drives from FAT32 to NTFS. I used PC Inspector File Recovery 3.0 for recovering my deleted/lost files which are mostly jpg, avi/dat and pagemaker files. While some jpg files have been recovered successfully, other coulnd't be opened in IrfanView on recovery. A pop-up message saying, "....Can't read file header! Unknown file format!" always appeared. Also, some folders but not their contents were only recovered. Why? Also, I couldn't not open some folders/files. "....is not accessable. Access is denied" appeared. Why?