Please delete your duplicate post and please tell us at least a little bit about your project, your footage, your system. Asking a quesiton with some details is like asking "Why is the sky?"
Why is the sky what????
i downloaded a video from you tube through offliberty.com via my dell computer. i no longer have the download bar in imac, that appeared above the video monitor, it's gone. the video played normally in the pinnalce studio 14 at 29.97 fps. i created a file and moved it to the external drive and then into imac. after effects would not except, i converted through Movavi to a dvd file (mpeg dvd ntsc). imported and checked all perferences. the play back of the video was speed up probably double. so i fooled around with rotobrush anyway when i noticed a warning in red lettering that read the video was in a 59.97 fps. i didn't touch the interlacing, don't know if that would have an effect. i'm new to this ae and it's confusing. i'm used to pinnalce. could you point me in the right direction, i looked at all tutuorials on you tube and ae help section. thnak you
the video played normally in the pinnalce studio 14 at 29.97 fps. i created a file and moved it to the external drive and then into imac.
What do you mean you "created a file"? What kind of file? Why? You had a video file that played...
i converted through Movavi to a dvd file (mpeg dvd ntsc).
This may have introduced some issues with the frame rate.
i noticed a warning in red lettering that read the video was in a 59.97 fps.
Try changing the interpretation of the file in After Effects to the correct frame rate. (Look in the help if you don't know how to do this.)
i looked at all tutuorials on you tube and ae help section.
No. No you didn't. There are thousands of videos on YouTube and hundreds of pages in the AE help section. You did not go through all of them.
You have fouled something up in transcoding the file to another format. Show us the movie info window from QuickTime for the original footage and for the footage you transcoded. That's the first place to start.