Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > Apple TV and Home Theater

Thread Tools Search this Thread Display Modes
Old Feb 20, 2011, 08:21 PM   #1
macrumors 6502a
Join Date: May 2006
Decrease file size of MP4 or MKV movie?

I have some HD movies in mkv and mp4 formats that are around 5GB. Is there any way that I can shrink them down to be slightly less than 4GB so that I can move them to my FAT32 external? I want to do this without losing too much quality. Thanks!
jason2811 is offline   0 Reply With Quote
Old Feb 20, 2011, 11:39 PM   #2
Thread Starter
macrumors 6502a
Join Date: May 2006
Can this be done through Handbrake? If so, what are the best settings to use to make the files less than 4GB and retain the best possible quality? THANKS!
jason2811 is offline   0 Reply With Quote
Old Feb 21, 2011, 04:31 AM   #3
macrumors regular
Join Date: Oct 2003
Location: UK
Send a message via AIM to Waragainstsleep Send a message via MSN to Waragainstsleep Send a message via Skype™ to Waragainstsleep
Handbrake will do this. I usually start with the AppleTV legacy setting and adjust it as I need but I am streaming to a 1st ATV if that matters (I suspect it does not).
Just set the target file size. I would go below 4GB as it tends to overshoot now and then. I leave it on .h264 for HD content but with SD I tend to use plain mp4 as its considerably quicker without taking up much more space.
Mkvs should fly along fairly well but I find re-encoding mp4s takes forever. No idea why that is, though having said that I am not sure I've tried it with Handbrake, only Visualhub.
Waragainstsleep is offline   0 Reply With Quote
Old Feb 21, 2011, 06:45 AM   #4
macrumors 68020
Join Date: Feb 2011
You can use handbrake with an output size of <4096mb, however you will notice a drop in quality, re-encoding x264 video is a fundamentally flawed process which you should avoid at all costs. Just know that if your video has DTS audio, handbrake will only allow you to re-encode to 2.0 AAC, it will passthrough AC3, however.

Something to bear in mind, most 720p x264 rips available contain DTS audio @ 1.5mb/s, any DVD5 (4.37GB) size releases you have can be shrunk to <4GB by re-encoding the DTS to AC3 at 640kb/s. However, that's a bit more of an advanced process, go ahead if you're familiar with demuxing, muxing etc. Wont work for 1.5xDVD5 (6.6GB) or DVD9 (8GB) though.
Desktop: i3 4130 - OS X 10.9 & Windows 8
Portable: i5 3317U - Windows 8
AdrianK is offline   0 Reply With Quote

MacRumors Forums > Apple Hardware > Apple TV and Home Theater

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
thread Thread Starter Forum Replies Last Post
DVD collection into Plex. MP4 or MKV? T'hain Esh Kelch Digital Video 3 Nov 8, 2010 08:24 AM
reducing the size of mp4 files without quality loss HELP! atarigraffx Digital Video 7 Sep 2, 2009 11:03 AM
Average file size of full movies Chubypig iPod 18 Oct 8, 2007 03:13 PM
Reducing pixels to decrease file size??? RLR Digital Photography 2 Dec 4, 2006 07:34 PM
Is There a Program to Decrease the Size of My Jpeg's???? SamIchi Mac Applications and Mac App Store 8 Feb 20, 2005 05:14 PM

All times are GMT -5. The time now is 06:32 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013,, LLC