you can add to your list, Mani Rantam's Telugu film: Geethanjali. DVD by "KAD" has both Telugu and Tamil tracks. English subtitles. Best dvd you will ever find of this movie. Letterboxed, Pseudo-5.1
Gharshana/Agni...I have both these dvd's. either one is fine, because they both are of mediocre quality. Full Screen(?)
Roja, why would you want to watch a dubbed film if you don't understand the dubbed language anyway? Get the Tamil DVD.
Get DEI Dil Se. GOOD LUCK finding an original DEI disc of Dil Se!! You will need more than luck.

letterboxed, excellent dd5.1. progressive with a lot of motion blur, soft picture. but best released.
Alai Payuthey, Ayngaran - DD5.1, sharp picture, interlaced. dull colors imho, but excellent overall.