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.
Recordable formats, supported by the DVD+RW Alliance[edit] 1  DVD+R: can record up to 4.7 GB single-layered/single-sided DVD+R disc, at up to 16Ã speed. As with DVD-R it can only be recorded on once.  DVD+RW: can record up to 4.7 GB at up to 16Ã speed. Since it is rewritable it can be overwritten several times.