:disagree: This laptop was available with different drives (combo included). And if it is a TSST DVDRW, then it's most likely a TS-L632H.
ONLY DELL firmware will work!
:disagree: TS-L632H Dell OEM can be crossflashed to SN-S082H SBxx (Samsung Retail) firmware, if wanted.
Both, SH-S082H SBxx and TS-H632H Dx00 (Dell OEM) can be RPC1 patched with MCSE.