Sharp drop in FPS while recording I've recorded a few Minecraft videos using bandicam before without this problem, but yesterday I went to record it was all going good until out of nowhere my FPS went from like 60-100 to 0-2 for like half a second. 

I thought it might be because of me changing my screen resolution from 1360 x 1024@60hz to 1440 x 900@75hz. So I switched it back it didn't change anything I tried recording using ultra high 60fps settings again it records fine then out of no where fps goes to 0 usually I have music playing over the in-game audio I turned that off. I even tried the low-end settings and I still got FPS lag although it was smaller it was still there. I switched the drive that it outputs on also to no avail. I don't have a bad setup its pretty new and shouldn't have any problems running this:


Dell Optiplex 780
Windows 7 Pro 64-Bit
Intel Core 2 Duo@3.00Ghz
8 GB Samsung PCI-8500F(533Mhz) RAM
ATI Radeon HD 4670 PCI-Express x16 graphics card 1GB memory
1 TB Western Digital HDD
320 GB Samsung HM321HI HDD


Also when I playback these recordings they skip sometimes and they speed up almost like I'm watching them at increased speeds. If need be I'll upload one of them so you can see what I'm talking about.

This is a video that I recorded like 2 weeks ago so you know my computer is capable of capturing, I also use the default settings in bandicam (Free Version).
Most screen capture applications are pulling video from the video card down to main memory to compress it and write it to disk. Most video games are uploading textures and geometry to the video card to display it to you. It's possible to get into a situation where more memory is needed on the card to run the game and record the video than you have available. That's usually when you see frames dropping. Depending on the game, it might happen when more characters or scenery is visible (such as when viewing a scene from high up, and it's all in frame). The memory on the card is limited, and the ability to move data around in the computer is also limited. It sounds like you're hitting those limits.