Currently Being ModeratedJan 11, 2013 6:01 AM (in response to srmsrm)
it's true that your devices have different sizes and resolution. So normally software make differences just between Ipad and Iphone. Inside of this device classes the resolution size will be up or downscaled by GPU. So you can see a movie in 4S or on Iphone 5.
Normally you export your movies to itunes, when syncing to your device. While syncing, itunes convert the files to the right size. So you can sync your files form itunes to Ipad or Iphone in the same way - as a "fire and forget method".
I think it's clear, that DVD are from older stages, based on MPEG 2 coding. All this material have to be upscaled to resolutions like Ipad or iphone have.
thats my opinion, hope it helps
Currently Being ModeratedJan 13, 2013 9:00 AM (in response to srmsrm)
iTunes can do some conversion but it does not convert the video for each device when syncing. Use a preset with the program you are using that will make a video for the largest display you will use. Typically an HD video will work on most newer iOS devices as long as it meets the devices video requirements. The video player on the device will look after the size of the video on the device.
I normally use HandBrake for video conversion. It has presets for most of Apple's devices. For my uses I found the Apple Universal setting was best to create good quality video files that work on everything from my Apple TV to my 1g touch. It may not be the highest quality setting and the file size is larger but it works were ever I want it.
Currently Being ModeratedJan 14, 2013 1:40 AM (in response to srmsrm)
Stephen explain that more correctly. iTunes do not conversion while syncing. As an example, if you are syncing a movie to an iphone/ipod or an ipad - it has the equal file size. And that was my opinion: the device GPU will size the movie to the right resolution for the screen cability. Some software have the ability to fit your movie to the special device before storing in iTunes - like handbrake or other. In that case, the file size will be slightly different, in relation to the device cability.