I have a 320gb WD portable hard drive (was FAT32 but i converted it to NTFS after the files could not be read). Anyway I copied some files (videos etc) off a mates computer (Win XP, ??), and when i came back to mine (Vista, NTFS) the files are not able to be seen? The space is taken and they are not hidden so i have no idea what the problem is? I had a recovery program which showed their names etc, and that they are actually there, but because it wasnt registered i could not do anything with them. Any ideas? Thanks in advance 