Hi all, I am been confused for a week about the transfer rate on local area network through wifi. I downloaded plenty of videos from the internet on my PC and I would like to transfer these videos to my Mac. At the beginning, I use thumb drive to copy the videos and paste it on Mac. (The thumb drive was a homemade one which has the capacity of 8G with 3mb/sec writing speed). However, the quantity of videos are pretty large, I started to consider to use Hard Drive (500GB WD Hard Drive with 30+mb/sec writing speed with USB 2.0). I tried to use this to transfer videos but the application that allow the PC read Mac disk need to pay for registration. Hence, I need to find another way to solve this problem. Then I started to think how about the LAN via wireless network and I do have a wireless router. Connecting these two machines are not really easy, especially for PC and a Mac. Finally, I successfully connect two machines through the router. The transfer rate is terrible which is only 1.5mb/sec at max. speed. Here is the model of all my machines hopefully it does help a little. MacBook Pro 15-inch, Mid 2010, Processor 2.4 GHz Intel Core i5, Memory 4 GB 1067 MHz DDR3 Dell XPS M1330 D-link DIR-655 Q01: Why the transfer rate only remains at 1.5mb/sec, because even the download speed can achieve about 7mb/sec. I use SMB for file sharing. Q02: I select serval folds to share but when I use my PC to access the Mac, it able to access entire Mac disk even the external hard disk. Why?