my computer got a virus a few weeks ago that wiped out my files. i had many of my files stored in dvd-r discs, but one of them just doesnt want to work/wont open/read the files...etc. I used CD Recovery Toolbox free but it didnt work, it didnt even recognize that the disc was in the player. are there any other free trusted recovery programs out there? maybe any that work specifically for dvd r's?