If using removable media like USB flash drive or DVD the PS3 can play full audio 96KHz rate but only if the directory structure is strict.
By that I mean:
- For USB it must be in a directory called AVHCD in the root of the drive
- For Optical DVD/BD the BDMV directory must be in the root of the disk.
eg for USB, if you have exactly same AVCHD file set under directories in root called AVCHD and another called AVCHD_1, it will send full definition over HDMI to the AV receiver for AVCHD because it switches to a different play mode. To play the files under AVCHD_1 you have to browse to them and select but they only pay at 48Khz.
For a long time I could not see why my 96k and 192k files were only being sent as 48k. I thought it was the PS3 Media Server getting the transcoding wrong somehow.
This must stem from the fact that media with AVCHD in root is detected as a special case and is played in a different mode selecting the folder with AVCHD logo. In all other cases, including Media severs, you have to browse to the files you want to play. I suppose this could be just official HDMI downscaling to 48k as the PS3 may not send the HDCP signal to the receiver for files browsed to but does when it sees the strict AVCHD structure, which looks like a BD title. From my point of view this is unfair as all the HD audio files I have are paid for downloads from HDTracks, 2L and Linn;
So if PSM could emulate this structure to XMB to invoke the same mode when selecting a title, we would be fine to build whatever directory structures are necessary to maintain our libraries. I don't know if this has ever been identified formally and requested.
