as some might already know Ahead defined for its NeroDigital MPEG-4 encoder private profiles, just as DivxNetworks did for its DivX5 codec, for being able to do private certifications without having to care about the profiles defined in the MPEG-4 standard in contrary to the DivX5 profiles, there are no informations about the ND profiles publically available. thats why i did some little research on the ND reference samples, which can be found by analysing the VOLs of these files i found the following: HDTV profile Indicated MPEG-4 Profile: Advanced Simple Profile @ Level 5 Video Object Type: 17 VBV: bit rate 24500, vbv buffer size 5981, vbv occupancy 505274 Framerate: 25fps fixed Size: 1920x1072 not interlaced no GMC QPEL enabled Complexity Estimation enabled Cinema profile Indicated MPEG-4 Profile: Advanced Simple Profile @ Level 5 Video Object Type: 17 VBV: bit rate 24500, vbv buffer size 5981, vbv occupancy 505274 Framerate: 25fps fixed Size: 1280x720 not interlaced no GMC no QPEL Complexity Estimation enabled Standard profile Indicated MPEG-4 Profile: Advanced Simple Profile @ Level 5 Video Object Type: 17 VBV: bit rate 10000, vbv buffer size 2441, vbv occupancy 206215 Framerate: 25fps fixed Size: 720x576 not interlaced no GMC no QPEL Complexity Estimation enabled Portable profile Indicated MPEG-4 Profile: Simple Profile @ Level 0 Video Object Type: 1 VBV: bit rate 5000, vbv buffer size 1221, vbv occupancy 103150 Framerate: 25fps fixed Size: 352x288 not interlaced no GMC no QPEL Complexity Estimation enabled Mobile profile Indicated MPEG-4 Profile: Simple Profile @ Level 0 Video Object Type: 1 VBV: bit rate 1000, vbv buffer size 244, vbv occupancy 20613 Framerate: 15fps fixed Size: 176x144 not interlaced no GMC no QPEL Complexity Estimation enabled anyone knowing what Video Object Type and Complexity Estimation is about?

Thanks for posting this info buddy! Cheers

thx a lot :)

Are these "Profiles" for regular Mpeg4 (ie: non AVC) encoding? I see GMC is "disabled" for all of them. And Qpel is "enabled" for HDTV! And.... just to confirm. What are the "bit-rate" settings/speeds measured in? And.... Will there be a different set of "Profiles" for Mpeg4/AVC encoding? Cheers

Hmm, why has the HDTV profile a resolution of 1920x1072 and not 1920x1080... :confused: Bye

@SMD: The trailers on the Nero Digital Website are non-AVC. There must already me a different set of profiles including HE-AAC as they are listed in the options of Recode. @Soulhunter: 1080 is not divisible by 16.