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I've had some of these DVD-Rs laying around my room for awhile, and today I put one in my laptop (Windows Vista) for the first time to attach a video file to it (to play on my blu ray player). When I popped it in I selected that I would like it to act as a USB so I would be able to attach and delete files whenever I please. Putting the video file on the DVD-R was no problem, but when I deleted it I noticed that the DVD-R space was still taken up. The video file was about 2.5GB of the 4.7GB space of the disk, but after I deleted the file it acted as though I had never deleted anything and the space was still taken up. I tried other ways to delete the files off the discs but each time it continues to say I'm taking up space when I've already deleted the files. Is there something I'm doing wrong or is this not even possible with this kind of DVD-R? Thanks.
You can't delete from a DVD-R, in order to do that you have to have a DVD-RW disc. With a DVD-R you will be able to add to what is already on the disc, but what is there has to stay there. DVD-RW discs are not particularly reliable, and cannot be written and deleted from nearly as many times as a flash drive can.