Ultimate format for portable DVD player and why.

This is what I think is the best format for making Very Large video data discs that can hold 20 plus hours of video. The 2 programs that are needed to make one of these video discs are Xilisoft Video Converter Ultimate 5, and some type of burning program like Ashampoo 6 or 8. Both programs can be found on 4 Shared. These are RMVB formats, and while the video quality is only 320x240 the picture and sound are very good. Both of these programs can be used with older versions of windows like windows XP through windows 7. I'm not sure about anything higher since I don't use anything above windows 7. As you can see there are several Full seasons of shows on this one DVD. Programs ca be found here. https://www.4shared.com/s/fLkw8sPGxea
https://www.4shared.com/s/fk8tzS4hoea
https://www.4shared.com/s/fVQsAoiOgiq
https://www.4shared.com/s/ffD0CKWimea