Blu-ray discs without HD sound ?

[roger06]

I was having a look through (horrendously priced) Blu-ray discs in HMV yesterday and on the back of most was 'DTS Master Audio'. However, some (Black Hawk Down I think was one) - only seemed to have Dolby Digital.

Does this mean some BDs only have 'normal' DVD type sound? or would Dolby Digital in these instances refer to the HD versions ?

 

[Frank Harvey]

Some movies that are True HD or DTS-HD do only have the standard logos shown on the back cover (although I believe BHD is only DD). Some of them may be a higher DD transfer rate. It's a bit of a minefield at the moment with audio classifications on BD, hopefully it'll be sorted out soon.