AL S said:
Correction. The DVD-Rs do play in the EX75, but not the DVD+RWs (Sony brand.)
I was also mistaken in saying the +RWs played on both my laptops - they play on my old Toshiba laptop fine and in my old Toshiba 420 DVD player, but they won't play in the new EX75, nor in my new Sony Vaio laptop...
I get messages telling me no disc, not a DVD disc, or video_ts/video_ts.ifo does not exist.
The DVD-Rs will play in the new laptop - but not with WinDVD.
Why is this DVD recording lark so difficult!
The answer is in the messages you get.
When a disk is inserted into a machine it goes through an initialisation procedure to identify the type of disk and its contents.
One failure mode of this procedure is if the disk cannot be read by the laser, which can occur because either the disk is dirty , damaged, or incompatible.
The remaining failure mode occurs if the content of the disk is not in a form that can be recognised.
The machine is obviously looking for the TS information file [ *.ifo ] and cannot find it for one of the reasons above.
It may be that the disks are not finalised [ which would generate such a file] That has to be done on the machine on which the recordings were made.