New 12.9 inch iPad Pro will not let me use iUSB pro app.I can’t look at my Mavic pro 2 video recordings on sd card.I had no problems with my old iPad Pro.

Put and Play Canon HF S21 HD 1920x1080 AVCHD MTS on iPad

Canon Vixia HF S21 is the new AVCHD camera in 2010 for capturing Hi Def 1920x1080. The 64GB internal flash drive enables long time video recording for more than 8 hours with Full HD 1920x1080 recording at FXP profile. It enables double slots for SD memory cards.
The video captured with Canon HF S21 is stored in AVCHD .mts file format with MPEG-4, AVC/H.264 as video codec, and Dolby Digital 2 channel (AC-3) as audio codec. If you get the with optional Canon SM-V1 5.1-Channel Surround Microphone, you can get Dolby Digital 5.1-channel for the audio.
To transfer Canon Vixia HFS21 AVCHD to computer hard drive:
You can use the bundled Pixela ImageMixer 3SE Video Editing Software, and it is easy to transfer Vixia HF S21 AVCHD movies onto computer hard drive with this software. If you are using Mac computer, you can also use iMovie to download videos to Apple hard drive. Just connect the camcorder to iMac/MacBook Pro with Mac OS X like Snow Leopard, and HF S21 could be recognized by iMovie for loading videos.
To put and play Canon HF S21 AVCHD videos on iPad:
Even though iMovie mentioned above could recognize Caonon HF S21 for loading videos, there are also problems for importing Canon HF S21 .mts to Final Cut Pro (FCP) or Final Cut Express (FCE), even iMovie. Aunsoft MTS/M2TS Converter for Mac is the recommended Mac Canon HF S21 MTS to iPad converter for you to easily edit Canon HF S21 videos and transfer edited video to iPad.
Below are the simple steps for transcoding Canon HF S21 to iPad.
Step 1. Load Canon HF S21 video to Aunsoft MTS/M2TS Converter for Mac.
After transferring Canon HF S21 AVCHD videos to Apple hard drive, run Aunsoft MTS/M2TS Converter for Mac as Canon MTS converter and click the "Add" button to load .mts videos.
Step 2. Edit Canon HF S21 MTS videos.
Select the video clip and click the "Edit" button to trim and crop videos, to flip video, adjust brightness and contrast.
Step 3. Choose iPad HD output format.
Click the "Format" option and choose iPad > iPad HD Video(*.mp4), and the Mac Canon MTS to iPad converter will convert AVCHD Hi Def 16x9 to 720p MP4 videos for iPad.

Step 4. Convert Canon HF S21 MTS to iPad.
Click the convert button under the preview window, and the conversion from Canon HF S21 MTS to MP4 for iPad starts immediately.
After the conversion, connect iPad to iMac/MacBook Pro and sync the editing videos to iPad. It is that easy to transferr edited video to iPad. Give it a try and enjoy AVCHD videos on iPad.