Thank you for the reply.
MEDIA is numerous footage files . ALL MP4 video files. @ 1920x1080 upper fields ( we output to PAL) Mill colours the profile is HDTV with the colour set YCbCr. (NO AUDIO )
The sequence compiles of several clips of footage with the same settings as above, NO mixed footage media , apart from some stills cleaned up in photos shop. titles are made with in the programme. = AFX or PPro ( another prob, is when making titles in AFX they can NOT be seen in PPro ..just a black square?).
Audio is a wav from client.
Export and comp settings. are for PAL 16.9 SD tv. = non square pixels, PAL D1/DV widescreen there fore HAS to be 720x576 ( final size) frame rate 25, 16 bpc F ( have tried lower bit rates and higher does not help).
The work space ,the best I have found since trying to resolve this problem is to select "Adobe RGB (1998).....
The SDTv PAL setting REALLY screws it up?.. AND even though it doesn't have the extra black ..colour depth I did try it with the 16-235 setting which didn't work Also tried to soften the SEQ with setting blend colours with the gamma setting.
Render settings are output as MPEG 2 multiplexer at mpeg 2 bit rate , have tried both constant and variable with the bir rate setting have tried on CBR and VBR 1 pass and the min /target/Max bitrate bar has been in every possible position I can adjust.
Final output channels are set to RGB with millions of colour ( no alpha.) with the premultiplied set to matted... again have tried both settings
Footage files are on D partition project on D partition rendering to E partition, scratch disc is F partition. ..............................
eeeeerrrrrrr I think that's it. please let me know if there is anything.... I MEAN ANYTHING ... ANYTHING to help resolve this.................. going CRAZZZyyy .
Again , thank you for the reply. best wishes,on this warm summer day in Adelaide.
It is a very bad idea to use partitions. They cause a lot of wear-and-tear, reduce performance significantly and put a heavy burden on the system.
Have you been in the Navy? Why do something the easy way, when there is a much more complicated way seems to be the Navy way.
You need PAL SD material, so use MPEG2-DVD to export. Keep everything PAL, so 0 - 255 RGB range, 25 fps, 720 x 576 resolution and turn on MRQ. Do not modify anything else, unless you KNOW what you are doing.
It sounds more like the cache is corrupted and the files may have dropped frames that then get duplicated.
Try to clean the Cache via the preferences Menu under "Media & Disk Cache" > Conformed Media Cache > "Clean Database and Cache" then restart After Effects. If you see any activity of the cache being rebuilt, usually an orange progress bar, leave it until its done rebuilding the cache files. Then export.
I wouldn't recommend using Partitions for Video work.
Firstly thanks for the reply
and thanks for the twitter replies to cassie ... working in the same place .
the cashe is cleaned up as a constant measure .. I do it as a regular habit and I do both purge and clean the cashe from pref-box before rendering /exporting out.
. and have the secret’settings’for purging frames . ( open pref whilst holding down Ctrl-Shift -D)...... aware of progress bars and rebuilds as is the same thing we used to have on the avid Liquid ... really think it's the bosses decision , to ( despite the advice not to partition .) ..to partition the drive into 3 .. yepp 3 parts....
so ..if you can help.. write a nice long reply explaining not to do that .. and he might ... just might listen to ...you ..
then again .I,m starting to wonder if it's the clients footage ..mpeg4 could be the prob..( looks like it was shot at a colour aspect of 4.2?) OR a combination of all..... just converted mp4 to a avi ... removed the problem of dropped frames....but not the sudden stopping and starting ..( freeze framing??) which is also seen on the final play back. AND the project is just 15 seconds long...
Sorry .......... getting STRESS OUT..
best wishes on a rainy cloudy day here in Adelaide.Christina
Check out this link for multiple links on how to build and optimize a system.
I'd run a HDD read/write speed test (there are IO Cards that supply a Disk Speed Test Utility) to check the actual speed of the disks.
Partitions are bad for video which needs high speed read/write datarates. Espcially if you are running the OS from the same Physcial drive as the content...
Good Luck. JB