I installed a Samsung 256 ssd in my MB Pro unibody 15 this am. I cloned my existing hard drive to the Samsung using Super Duper and a Wiebe dock with SATA connector. I then pulled my Hitachi drive out and put in the Samsung. Seems like there is a few bugs. The machine has froze twice while using it in the last half hour. I then ran Xbench and the numbers didn't seem what they should be. Here they are: Results 180.62 System Info Xbench Version 1.3 System Version 10.5.6 (9G55) Physical RAM 4096 MB Model MacBookPro5,1 Drive Type SAMSUNG SSD PM800 Series 2.5" 256GB Disk Test 118.51 Sequential 172.33 Uncached Write 252.91 155.28 MB/sec [4K blocks] Uncached Write 194.19 109.87 MB/sec [256K blocks] Uncached Read 89.88 26.30 MB/sec [4K blocks] Uncached Read 335.31 168.52 MB/sec [256K blocks] Random 90.31 Uncached Write 26.26 2.78 MB/sec [4K blocks] Uncached Write 278.73 89.23 MB/sec [256K blocks] Uncached Read 1564.86 11.09 MB/sec [4K blocks] Uncached Read 504.91 93.69 MB/sec [256K blocks] Any thoughts?