Data Lost On CD-RW

I use CD-RW to back up and transport files from computer to computer. Lately I’ve been losing all the data on the disc. They work fine for awhile, allowing addition and deleted to the discs but a of a sudden all that is left on the the disc is a autorun.inf, Onpenhtml, and a FILES folder contian read me files about nero and INCD. Does anyone have any ideas on what’s causing this and/or how to fix it and recover my data. Thanks in advance for the help.