DVD what format?

Not sure if this is the right forum to be using be here it goes. I am looking to find out what format DVD’s use. I have an extensive collection and would like to put it on a portable video unit like rca lyra or avias MEC. I am not sure what format they start in and how easy it would be to convert to mpeg-1, -2, or -4 (that is what the avias play). Please help.


DVDs are MPEG2 or MPEG1 video (Scenarist accepts MPEG1 as well), and either DTS, AC3, or LPCM audio.


What unit do you have and model + manufacturer?
It’s a lot easier to recommend settings if you know what its capable of by reading a datasheet or something similar.