Hello all, I posted this on the Serato Scratch Live forum, http://www.serato.com/forum/discussion/391825#new here it goes: I just recently put a new Hard Drive in my MacBook Pro 5.1 2.66GHz laptop with 4 Gigs of RAM.. I put in a Western Digital Scorpio Blue 640GB HDD 5400 RPMs from a Seagate 500GB 7200RPM drive.. My laptop runs a lot cooler now, My battery life is better, but sometimes when I select tracks my drive will take a second to load and at first when I would record in SSL and have KueIt open I would get USB dropouts, however that hasn't happened since I've done the Repair Disk option in Disk Utility. My Read/Write Speeds using the AJA Test System are: Write: 79.7 MB Read: 79.8 MB Is this normal for my computer to take a second to load some tracks? I just want to make sure everything is normal, are there any procedures I should be doing to check if everything is perfect? Should I look into getting a new Hard Drive? Maybe the Hitachi Travelstar 5K750, get an extra 110 Gigs and also have a more reliable drive? Also, I should mention I just ordered 8GBs of Ram from MacSales, maybe this will help? Thanks! Sorry for all the questions!