Some â€˜Factsâ€™ to consider concerning Panasonic/Matsushita/Matshita Drives ->
Panasonic/Matsushita/Matshita Drives have a well-documented history of being extremely â€œMediaâ€ picky.
Matshita/Matsushita/Panasonic Region Free (RPC-1) Firmwares are not available and also all â€œSoftware Solutionsâ€ alternatives are also unable to circumvent Matshita/Matsushita/Panasonic Region Code prohibitions.
Most Matshita/Matsushita/Panasonic Drive owners are disappointed in the performance of their Matshita/Matsushita/Panasonic Drives.
Considering the above â€˜Factsâ€™ in seeing that you have choice between a Matshita Drive and an Optiarc Drive I believe the Optiarc Drive would be a better choice.