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.
DVD Media. Digital video discs have a significantly higher storage capacity than CDs and offer a fuller, multi-channel sound (such as surround-sound) experience. There are four types of DVDs: To utilize dual-layer technology, you must have both a compatible disc writer and dual-layer media. The actual number of files you can archive (or burn) on a disc varies depending on the quality level of saved files.