after effects 86::2 error 4

i looked old answers about this issue but none of them solved my problem..

my problem is i cannot render some of the videos. up to yesterday, there was no problem i could render all the videos that i shot with my camera but today it started not to render new videos i shot with same camera.. i didnot change anything on the camera or after effects cs4, but i cannot render today's videos.. the videos looks normal when i watch, nothing is different from previous videos but i cannot render them when i try, at some point it gives the error message "After Effects error: Error (4) reading frame file "F:.......".(86::2). after this message if i try to render yesterdays videos to render there is no problem.. but i cannot render todays videos. i changed the memory card, battery but nothing changes.. the more interesting thing is that, not all of the videos that i shot today creates render problems, 1 or 2 of them renders but the others do not render.. we are now 7 people and we are trying to fix this problem for 8 hours and we cannot find anything.. even we cannot guess the problematic component.. please help we have to render about 120 hours of video and this problem kills us

i don't think footage is damaged because we can watch them and there is no difference from the videos that we can render.. and also after some "non-rendering" videos, some videos render randomly.. every time we changed only 1 thing to find the exact problem but it didn't work.. the only word that explains it is "random".. it it wants it renders.. yesterday and previous 2 months i have no problems with my videos but today i hava a big problem.. i did not change the codec because as i said untill yesterday it can render our codec and sometimes still it can render our codec.. this completely kills us how can be such a problem it is the most illogical problem i have ever seen.. conditions are same for 2 input but some of them works some of them not.. please help

[cenk yilmaz] "After Effects error: Error (4) reading frame file "F:.......".(86::2) ... i changed the memory card, battery but nothing changes.."

Are you trying to work with the media directly from the camera or memory card reader? Try bringing it onto your computer.


[cenk yilmaz] "after effects cs4"

AE CS4 and prior doesn't deal well with interframe-compressed media, like MP4, MTS, etc. (look up Dave's Stock Answer #1). The difficulties can be intermittent. Transcoding as Ben suggested to a intraframe-compressed codec (like Quicktime Animation or PNG) is highly recommended.

This behavior is significantly improved in CS5 and above.

Walter Soyka
Principal & Designer at Keen Live
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Hi there...i had the same problem in after effect cs5.5 ....i just replaced the file( FILE> REPLACE FOOTAGE) with the file itself....it's worked for me...

aldo