I have noticed that DGIndex and DGIndexNV report different audio delays. For example:
DGIndexNV:
20090622213601 PID 088 3_2ch 48KHz 384Kbps
DELAY 0ms
DGIndex:
20090622213601 PID 088 3_2ch 384Kbps
DELAY 32ms
Here is a sample:
http://www.megaupload.com/?d=7QWXX4SA