ATRAC chip question

[bluecrab]

Question about ATRAC chips: If a chip is, for example, Type R, can it also deploy prior ATRAC versions, or is it that version only? (I'm hoping that "there are no stupid questions" is true!)

[trott3r]

If you mean write in ATRAC v4.5 then no.

type r can play v4.5 though.

 

[kgallen]

And all players can play SP discs written with a Type R machine. 

[bluecrab]

7 hours ago, trott3r said:

If you mean write in ATRAC v4.5 then no.

type r can play v4.5 though.

 

 

Thanks for the responses. I meant Write and should have said so explicitly. Any MD can play any ATRAC is pretty well-known. I saw the following on minidisc.org, regarding the MXD-D40 (CXD2662R):

"ATRAC Type-R is used only during realtime SP mode dubbing, not for MDLP or high-speed SP mode dubbing."

This is not a new subject—I'm just looking at it from a different perspective. Got to wondering how a Type R deck could somehow produce less than Type R in SP mode. I thought that if that were the case, then there would have to be either something in the Type R chip enabling it to do less than R, or else there would have to be a separate chip. Similarly, the Type S (inclusive of R)  MXD-D400 (CXD2664R) is thought by some to be unable to effect Type R at 4x...but that seems not true, as noted previously here by sfbp and maybe others. Anyway, it's just not clear to me how such a process could happen. MDLP is by definition a different beast altogether.