FCP – AVCHD Playback Stuttering

mikemiho

Member
Really hoping someone has an idea or tweak to help me out...

I shoot on the HMC-150 @ 1080/30p and transcode to Prores. I'm editing pretty straightforward reality/documentary footage with interview on Track 1 and Broll on Track 2 with periodic L3rds above that. I typically have 10 audio tracks for various effects, music, and mics. Nothing too crazy is what I'm getting at.

What I'm noticing is that when I have two tracks of video stacked on top of each other (even if the top track is full frame 100% opacity) I'm getting stuttering playback after 5-10 seconds of acceptable continuous playback.

I've tried the typical RT/Dynamic switching to no avail.

Now, here is the tech (which is probably going to yield my answer). I'm running all media from a single G-Drive (not RAID) FW800. I've had other editors cut from this type of drive before without issue (on their machines).

I'm also editing on a MacBook Pro 2.2 GHz i7 with 8GB of factory RAM.

I'm guessing that the non-RAID is the factor or that FW800 can't carry the two streams of HD video at the same time. In my bins, the footage says its bitrate is 19Mbps. I tried searching the forums for anyone with similar issues to no avail.

Even if there is a workaround that doesn't playback full res, I'd be interested. Thanks in advance everyone.
 
I've tried bringing the playback quality and even frame rate (independently and in together) all the way down and up again against both Safe and Unlimited. No such luck.

Should the FW800 be able to carry the two streams of 1920x1080 hd? Should my machine be able to handle this?
 
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