You have 4:3 SD , 16:9 SD or HD videoclips up to 1080p, mpeg,mov or m4v you want to import into iMovie on your iPad?
Itīs easier than you think. There are several sometimes somewhat outdated websites out there describing difficult ways to import the videos to the iPad.
Letīs do it easy and fast.
What do you need: A free software called Handbrake. Get it here: HandBrake
Open Handbrake and load the videoclip you want to have on your iPad.
On the right you see a button "Toggle Presets". Click on it and select AppleTV2 if you have SD source or 720p videoclips. Choose High Profile if you have 1080p full HD source files
Select the output destination and hit Start (or add to Queue if you want to convert a couple of videoclips.
You will likely need to rename your videoclips to make it readable for iMovie.
iMovie accept only clips if the names are 8 digits or letters.
Examples that should work:
You can mix digits and letters use upper and lowercase like you want but it must be the magic 8 + appendix .mov or .m4v
Now fire up iTunes and connect you iPad with your Mac/Pc .Click on photos .Move to the folder where your videoclips are located. Select include videos and upload the stuff to your iPad and have fun.
Edit1: If your original source files are already iPad compatible* just skip Step1 and do the renaming Step2 only.
* http://www.apple.com/ipad/specs/ scroll down to TV and Video for more information.
Edit2: if you don't want to use itunes for some reasons you can use the filebrowser app on your iPad and copy the clips to the Photo Library. The clips will then automatically appear in iMovie.
Edit3: i successfully tested this method using the Camera connection kit. You only need to create a folder called DCIM on your SD card and copy the videos to the folder. Connect the CCK with the SD card and import the videos to the Photo Album on your iPad. This way you have extra storage for movies you can watch on the iPad if you are on holidays.