repair unfinalized dvd-rw

this is what happend, because I hadn't used new dvd's to record on for a while i tried about 7 dvd's to record on but after recording and shutting down the dvr, it said can't read the dvd. Finally i found out, just popped into my mind I first had to choose the right format(same procedure when you clean the disc) .VR or Video_ts . Every thing fine after that but those 7 dvd's didn't work anymore. I easily got the .VR movies from the discs by closing the disc on dvd decrypter. Now when I put the dvd in my pc, it automatically pops up. However the dvd still can't read it, full erase doesn't help either. I just want to use the dvd's to record again since they're practacially new. I know stupid me for not chosing format before recording. THNX in advance

Have you tried using ImgBurn?

sorry it took so long , things kinda hectic here. Tried IMG Burn, nothing, alson tried DVDinfoPro , which has got a full format option besides the erase options, looked promising to me but after the hout it took, again nothing. Mind you that both the dvd's are useable when a movie burned onto them as well as the recorder wich still works perfect with discs i treated "the normal way".

Whenever I have a problems erasing rewritables, I wave it in front of my 15" subwoofer for a minute. Works every time. I told a friend about it and he got results by waving a disc around his subwoofer, too. Although he had to take the sub out of the box and put the disc closer to the magnet. I have no idea why it works, but you could try it.