Sounds like a bumb-CD/DVD drive. Got one to swap out to check this?
I used the original drive in a GATEWAY, and an external LG multi read drive and my new HP all in one.. with the same results. I can see the files clearly and work with them and move them around in windows 7, but when I look again, there is nothing there, and several dvd disk reader programs such as VSO report that "The disks looks empty. I have a stack of disks that I wrote "TR" on TROUBLE. I check them again, and they appear fine as the data stored on them now functions. Later on, they disappear again. I wonder if I install my old copy of ROXIO EASY 6 onto this computer things will work out. But I Am afraid that without EASY READER on all computers, there will be problems.. If I move the files to another hard drive, they might contain the original ROXIO configurations and will cause problems for others who I may send them too. I believe that once a file has an "attribute.. attributed to its properties, it stays forever. regardless of what programs may have been used to adjust it or to view it. how do you release an attribute to a file?. Also one dvd reader program CD/DVD DIAGNOSTIC EVALUATION tells me that me that the files were created by ROXIO DRAG to DIsk.. A serious culprit. Even when I select one of the preferences in CD ROller which reads "WINDOWS INSERT" disk, that changes the ability to read data. When I select it, it shows files, when I un select it it ejects the disk and says the drive was empty. I have about 300 more to examine.. so this is going to be a MEMORIAL weekend. One that has lasted for over 10 years !! I want a super program that can automatically find files or least list the table of contents.. When I select the TOC option on one of the programs, it just says nothing. THis file can not be read. Even dvds that were burnt on a Panasonic dvd/vhs recorder show empty, but when i place them in my dvd player, they show up.