A friend has lent me some D VD's recorded off air to copy. 1 of them
can't be read by either of the DVD re-writers in my computer, or the two
drives I have in my hobby room.
The TV DVD re-writer comes back to tell me that they are empty, the TV
DVD player does not come up with a play list.
The first time this happened (4 D VD's ago) he told me that it had not
been finalized. He took it back and finalized it and it worked fine when
he brought it back for me.

All the D VD's are RW, but he is under the impression that if he
finalizes them he will not be able to re-write them.

In all the years I have used re-writable disks (CD or DVD) I have been
able to erase them and start again.

Can anyone help please?

Dave