From what I've understood , the hd800 are not very used by "audio engineers", and it's not just a matter of cost.
The hd600/hd650 are more popular for music production, although they tend to to be forgiving on flaws.
I remind someone using the hd600 to remove noise hiss, and then after using speakers, realizing that the noise was still there. My srh940 does the opposite, it makes noise related flaws more obvious .
A the tombraiderforums, there's a "remastered" version of the tomb raider soundtrack, and I know the hd800 was used to do the remastering .
EDIT: "professionals" discussing what could be the best headphone (for monitoring/mixing/mastering/producing electronic music)
I guess I could find similar thread at gearslutz. I know steve hoffman like the hd600.
Edited by extrabigmehdi - 2/25/13 at 7:59am