Misplaced Audio Folders = Corrupt Projects in Cubase 5

I accidentally deleted a folder called Cubase Projects with all of the audio files, edits, and images for all of my Cubase projects. Thankfully I had everything backed up, so I moved the project files into new, more logical locations and used the Resolve/Find Missing Files function in Cubase to restore my sessions. However, when I did this a lot of the audio came out stretched;the wave forms look altered and the audio plays back at a dramatically slower speed than it should. Additionally I am getting a lot of “Invalid or unsupported file!” errors for no apparent reason stopping me from fully recovering my sessions. Has anyone experienced this? Any ideas on how to recover my sessions?