I have the same problem with videos being choppy or freezing up completely. This happens using either the Windows Media Player or the VLC player. If I use the Windows Movie and TV player, the videos are smooth and vivid.
I tried rectifying this in the VLC player by changing different media setting recommended on the internet. But, to no avail.
I started having this problem with the 1.08 firmware version and it persist now with the newer 1.09 firmware version. I never had choppy videos before the previous 1.08 update.
I'm flying a Phantom Standard.
Likewise, anyone who might know the reason, their expertise on the cause would be greatly appreciated.