Tried everyone's suggestions but still not working and keep getting same error message no matter what I do, so below is all the details and error pop-ups using ImgBurn:
First, when burning .avi using DL+R disc everything seemed to be working and burning fine but after it was 97% complete an error message popped up stating "I/O Error along with #'s & other stuff I do not understand including "Reason/Interpretation: Invalid Field in CDB". Behind this is another message stating "Failed to Reserve Tract."
(*When using single layer disc it immediately gives these error messages without attempting to burn at all)
Now here is info/settings selected:
First I start with selecting "Write folders/files to DVD".
Next add the folder containing 211 .avi music video files.
Pop-up reads "You've selected 1 folder! Does this folder represent the root for the image content directory? (Otherwise this folder will be visible in the root directory of the image) I've tried clicking "yes" then "no" ending with same errors. Even tried opening this folder and dragging the folder's individual files to window to burn...still no difference.
Also a "Confirm volume label or it will do it for me" pops up. I have clicked "yes" then "no"...same errors.
Other settings include:
Under options tab---
File System: ISO9660+UDF
UDF Revision: 1.02
Recurse Subdirectories is checked.
Under information tab for the 4.3 GB disc (obviously DL disc changes these)---
of files: 211
of folders: 0
Total file size: 9,360,994,297 bytes
Total file sectors: 4,570,903
Image size: 9,362,243,584 bytes
Image sectors: 4,571,408
Free space: -4,656,168,960 bytes
Bar shows 199% (with DL disc- 110%) and calculator "auto" is checked.
And I click continue anyway with burning even though not all files will fit.
(Also tried at several different speeds fron 2X - 16X. My external device is new capable of writing at 22-24X and works excellent.)
All video files have been checked and play flawlessly using Real Player and VLC player.
Finally, I was able to burn the 211 files by using Burn MY Files software and it worked with the +R DL media. Disc played fine on computer; Real Media, Windows Media Player, DivX Player, etc..but will still only play the audio on home DivX player. Tried disc in vehicle's DivX player and this time it at least instead of getting a "Disc Error" from previous disc, it appeared to "blink" through each file but kept getting a "Unsupported File" message for each one. So...tried to create ISO image via ImgBurn and got 100% successful. But when I tried to write the image file to disc , once again, same errors as before even when trying the -R single disc.
Don't really know what I'm doing and don't understand what much of the above info means which is why I have detailed as much info as possible in hopes of someone pinpointing the exact problem and how to correct it plus media's too expensive to keep doing the the trial and error bit.
THANKS to All so far who have helped!