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imahawki

macrumors 6502a
Original poster
Apr 26, 2011
612
8
Hi all, I've been scouring the internet but can't find an answer to my question. I want to essentially do like Apple does and have a smaller (1.5-2GB) SD rip as well as an HD rip of my movies on BD. I don't want a movie to take up 8GB on my iPad just because the original source was a BD instead of a DVD but I want the larger rip for my Home Theater.

I use the batch encoding tool so once I come up with the right settings, I can do both encodes at the same time. The problem is, I can't come up with an encode that is smaller at this point. The ATV3 encode is producing a file over 8.5GB for Apocalypto BD. That's LARGER than the high-profile encode I did!
 
Well, if you want SD resolution, you should cut the resolution down to SD levels. That will significantly reduce file sizes toward what you seek (probably even get you there). High profile and SD resolution should yield small files.

You might also consider trying the :apple:TV2 preset first for a 720p version and see if that tradeoff works for you. In other words, things will go from 1920x1080 to 1280x720 with a single preset click. That will have a little more detail than the SD version but you'll pay for that with a little bigger file size (still a lot less than the 1920x1080 version though).
 
I'll try encoding ATV2 and or high profile but with 720 resolution and see what that results in.
 
That is the easy option and it will still result in something that can be called HD at 720p.

If it doesn't get you to the file size you want, the next step would be to adjust the resolution down to SD, which would significantly reduce the file size even more. These will still look good on iDevices but they won't look great on bigger screens.
 
ATV2 still creates too large of a file. It is 5.2GB vs 7.8GB for the 1080p High Profile encode. That's not much of a savings. Ideally I'd like to create a file that is the size of a High Profile encode of a DVD which average around 2GB.
 
2GB is just asking for a lot of artefacts with HD video. But if you're intent on it, just use avg bitrate encoding and set the bitrate to something that (based on the video length) will give you the size you want. (which is around 2-2.5Mbps for a 2 hour movie). An audio stereo track will probably add about 100-150 MB to that file aswell.
 
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