Hi, 'new' to the forums at least here. I'm just wondering about the recording formats and which home-audio decks would record properly for my MDX-C7900 (which is listed as using ATRAC4 w/2652AR IC inside.) I know that NetMDs don't work no matter what (I have one, and none of the settings render an MD that actually produces sound (only shows the TOC, etc.) *BUT* I want to make sure of the compatibilities of the home decks vs. the car deck. I was interested in purchasing either: MDS-JE510 (Older, but in the same time-frame as my C7900) or MDS-JE480 (Newer, although I'm unsure as it says that it records SP but the chip is of ATRAC Type-S DSP.) Essentially my question is where do the compatibilities lay? Will the C7900 be able to read later model-made but non-NetMD discs? Thanks for any hints, answers or insight.