Category C (Class 2) LGV / HGV training runs around Ipswich, Suffolk and uses the DVSA Test Centre in Ipswich. C is the category that allows you to drive a rigid vehicle over 3,500kg.
USB 2.0 is much faster than the DVD data rate. DVD 1x (slowest) write speed is 1.39MB/s. DVD 24x (fastest) write speed is 33.24MB/s. USB 2.0 write speed is up to 35MB/s. A 24x DVD max is about 32MB/s while USB2 max is about 60MB/s.
Data Backup Devices: USB Sticks. USB sticks (a.k.a. flash drives) are small in size and price, but mighty in capacity and convenience. Although you can choose either USB 2.0 and USB 3.0 devices, get 3.0; USB 3.0 promises a transfer rate of 5 Gbits per second, compared to 480 Mbits for USB 2.0.