Using Nero 9 for the first time. I put some music files on dvd as data. Some are .flv and some are .mpeg. When I tried to open them (read files from explorer), the folders appear in the window but when I try to open those the programme hangs and eventually comes up as 'not responding'.
If I click often enough in the screen, that eventually goes away, the files will appear and will play. If I scroll to the next row it freezes again when the files are halfway across the screen and comes up as 'not responding'. I have 3 folders on 1 dvd. 2 of them will open doing this, the 3rd just refuses to do anything.

When the dvd is first inserted in the dvd drive a message comes up in the bottom right hand corner:
'InCD: DriveP: will mount for read-only access. You will be able to read them but not write to it.'

I have tried to burn them again 3 times but still get the same result. I'm using the Smartstart centre to do it. The CDRom option didn't appear to burn what I thought would be a playable dvd. Perhaps I'm wrong.

I'm probably doing something really stupid when burning these, but can't figure out what. Has anyone any ideas, please?

Thanks for reading and in advance for any help offered.
hedley