I have a ProTools song that is originally created on a Mac computer. Now a have the song on a CD and wants to work with it on my PC. When a use Windows to view the CD contents I notice that there are no file-extensions on the files. I can rename the sessionfile an manually add the '.pts' on the filename, but when I then try to open it in ProTools, the program says: "Could not complete the 'Open Session...' command because: An error accoured while reading the document." If I manually rename a soundfile and adds the '.sd2' and try to import the file into a ProTools session the message " 'file.sd2' is unreadable by protools" comes up in the 'Import Audio ' dialog box. If I play a .sd2 file with Awave Studio it's just noise. Any suggestions to a solution to my problems would be greatly appreciated. Regards Rikard F.