How does AUDIO_TS improve compatibility?

[btspm]

I was just wondering, since a lot of original DVDs no longer include an AUDIO_TS folder, why is it recommended to include one in backup copies?

Assuming a standalone plays the original, pressed DVD, which lacks an AUDIO_TS folder:
If I burned two backups which were identical (content, burner, media, burn speed) save for the presence of an AUDIO_TS folder, why would the standalone be more apt to play the one with an AUDIO_TS folder?

I know and don't dispute the fact that it is absurdly simple and pain-free to just include the AUDIO_TS folder (I use imgtool anyway), but I would like to understand just why it would improve compatibility in a modern player.

Thanks for your enlightenment.

[killingspree]

hi and welcome to the forum,
afaik, this is just for older players, so if your standalone plays pressed discs without an AUDIO_TS folder, you shouldn't have to worry about it in backups either!

But what if you go to a friend, take the backup with you, so the original doesn't get damaged, and then discover that he's got one of these cheap 3 year old dvd players that weights like 10 kilos and doesn't play those freakin dvds without an AUDIO_TS folder?!

so imho, as you said, it's absolutely no trouble to include it, so why risk anything, just add it and wait for the moment where you think, good that I did add this strange folder ;)

steVe

[btspm]

Thanks for clearing that up killingspree- good to know it's not absolutely necessary for newer hardware.