Adaptive Codecs for different devices from PDA, handphone to laptop

Recently, I saw a presentation from a local research institute on an adaptive codec that they are developing.

Today if you have video content that you will like to provide for your users' devices like handphone, laptop or DVD player, you will need multiple files.
Eg. your handphone might only support QVGA (small size video) while your laptop can display in High Definition, and DVD can only take Mpeg2 and DIVX. So what do you need if you are the content provider.
- You need to store different files for different devices.

However with the new codec container, you only needed to store the picture once, depending on he device connected, the container will release the correct files. This will speed up the overall download speed as well as format type.

Full link at Exploit Technologies to Showcase HD-AAC
http://www.a-star.edu.sg/a_star/189-Press-Release?iid=36