The unit does get warm though on the bottom.

It cannot be plugged in with the AC adaptor and charge the battery at the same time. It should be built with one Power supply combination that we are able to plug in Car cigarette lighter, home AC and it will be charged to Battery at same time.

It has larger screen than any portable DVD. Good and reasonable price to use.
After market Battery vendors should come up with Power supply module so it could be use in Car cigarette lighter, at home and does charge bettery at same time