DVD shows full

I have been given a number of DVD+RW that I was told were blank. When I checked their properties, It showed they were full but there is no content. I tried reformatting with Nero,but it ejects about 20 seconds into the reformat. It always shows the supposed files as RAW.Is there some kind of lock on these blanks??

 

Any difference when you try a full format as opposed to a quick format?

 

same thing shows up when micro sd chip is knackered!

 

After doing full reformat. Nero disc speed tool shows disc status as "Closed"
Any help??

 

Try using ImgBurn to erase them.
Get past the initial screen and click Tools -> Drive -> Erase Disc

 

Did full erase with imgburn.DVD still shows closed. Not a prob with Nero software cos new DVD blank shows empty.

 

See if it can find updated firmware.

Tools -> Drive -> Check for firmware updates