Windows 7 - DVD disc created on Win7 only plays on XP

Hi, I have Windows 7 Home Premium SP1 64bit.

I recently burnt some files to dvd disc on my pc and they played back fine on mine and a Vista pc.

However, now if I burn files to a dvd disc using any program or Windows Explorer drag/drop the pc does not recognise the disc when ejected and then re-inserted, it just does nothing if I click on the Dvd drive. It doesn't argue about inserting a disc or an error on playback, its just as if the drive is inaccessible, not there. The burnt video files play fine from disc before ejection.

However, if I then insert that disc into my old Vista Home Premium SP2 32bit machine, everything is hunky dorey fine, disc is readable and prompts to auto play cideo files. I have no issue with it. Put it back into Windows 7 and again nothing.

So, the dvd disc is created in Windows 7, plays ok until ejected and then will only play on my old Vista Home Premium machine. I thought maybe session wasn't closed but as far as can see it is.

Most perplexed! I burnt the files ot dvd to sent to a friend who has Vista but has also tried a Windows 7 laptop so am completely stumped. This process worked fine just mere weeks ago for us, I am doing nothing different.

My devices show no sign of problems. Normal shop bought DVD plays on my pc fine so I know the drive is good!

Anyone offer an explanation? Thanks

Your drive may have a computability issue with the type of disk you are using. Try using a different brand and see if the problem remains, also check for a firmware update for your burner.

Yes I think a drive issue on the Win 7 machine. Disks created in a drive read differently than purchased disks and you drive may not be able to read the ones you burn.
Try burning one on either the Visat or XP machine and see if the & machine can read them. If not I think you need a new drive.