Is there any Computer with DVD drive or any standalone DVD player available which can play DVDs for all regions?

I understand that it may not be legal. But still asking if there's any way out available. I heard that there are options available (either thru software or hardware) which enables the player to bypass this drawback.

Another point is that, does the region code problem occur only for movie DVDs or for software DVDs as well?

There are some DVD writers available in the market. In which region format they do copy the DVDs? Can they copy any DVD (just like CD Writers)?

Any help is hightly appreciated.
Thanks.