Hi JxVegas702,
Before I get into the technical side, I went to Vegas last year and its bloody brilliant. If you live there I take my hat off to you.
Anyway back on topic.
The files have been created using Play TV. I have record the shows from live TV, they are sports events that I want to keep a copy of. There is an option in Play TV to transfer files to the XMB. After this I can then usually copy the file over to my 2TB Western Digital External Hard Drive, that is connected via a USB cable, and then delete the copy that is being stored on my PS3. With these four files I am unable to copy the files across so I have to leave them on the PS3.
It's not a massive problem, but I would like to have them transferred over to free up the space on my PS3.
Cheers.