On a cleaned Komputerbay 64GB card, I did a fresh install of ML and then the newest 50D raw build (5/28) - just to be sure I wasn't introducing any problems with cards that had been used for raw in my 5DMiii.
Still - I don't get write rates anything like what Julian and others seem to be achieving. Even 1280x720 writes at about 35-40 Mb/s and I start dropping frames after about 400 or so. Same result whether or not I turn on Hacked mode, I have selected small jpg for still image size, turned off Global Draw.... still I seem to be missing something.
I'll keep trying and reading the forum and other resources to learn - but I'll appreciate any tips about other things to test or try.
Thanks
Man sorry your having that much problems with your 50D Since we have the same CF cards (KomputerBay 64GB) here is what I did to get it running good enough but not perfect first of all don't use the may 28th build yet it's not final.
Step 1: Download my complete folder hack here:
http://limelinx.com/ca42c (everything is included for hack in folder)
Step 2: Format your KomputerBay card in camera ( should be in first setting option on the 50D Menu ) Takes just a couple seconds
Step 3: Unzip folder from download link and drag all files to your CF card directory (Leave everything else intact just copy and paste.
Step 4: Insert card back in camera go to your firmware update which should be the Third option on your 50D (click on Firmware and update let magic lantern do it's thing should say Success in green should know about this process since your hack your camera already.
Step 5: Global Draw off, The Hack Mode I still can't find that myself but I heard it should be on, than go through your regular routine Raw rec on, FPS Override set to 24FPS and I think that should be it.
One last thing shoot two continuous shots before you really shoot cause for some reason the first two are like a warm up enjoy
If your still having trouble let me know I'll here to help.
GOD Bless