What DVD burners can I fit into a Aspire X-Qpack?



My case does not all a normal size optical drive when I use an aftermarket power supply which I am now (an Enermax 400W) and I am currently using a Liteon 12x but plan on upgrading so I can give my old to family.

Are there any other brands that can fit properly without modification? The reason I dont want another Liteon is because the 20A1H which I have been looking at seems to cause problems for some people such as locking up at certain speeds or not burning properly on Verbatim. I am not sure if its an isolated random problem but then again I am not that knowledgeable about optical drives.