Need advice for replacing my EXternal drive

My external, 8X, USB2 DVD Writer from LiteOn, Mode: LDW-851SX got defective, the supplier is offering to replace it with any other external or internal drive, so what should I go for? internal LiteOn, may be with faster speed, dual writing or other brand as he has LG drive too.

I would go for the Liteon based on scans I have seen from LG but if you want an informed answer you will need to provide the model numbers of the choices.

What is the best Internal LiteOn model available nowadys? as my experience is only with the above external model.
LG model is GSA-4120B, is it better than the liteon? does it have any Hacked firmwares?