The Thomson DTI 6300 is not a DVD recorder. This may be why no body has answered your question as you have posted your question in the DVD recorder section.
Your freeview recorder is Top Up TV+ recorder (a DTT receiver with recording capability). Top Up TV used to broadcast a 14 day epg, but permanently ceased broadcasting on 1st November 2013.
As a freeview+ recorder it must also have an option in one of its on screen menus to display the more normal 8 day epg which is supplied by freeview.
Unfortunately the user manual for the Thomson DTI 6300 does not give details of how to turn on the 8 day epg. However, other people have reported on-line that they have successfully looked through the on screen menus and found the setting to change.
Immediately after changing the setting so that the 8 day epg is used please be patient. It will take time before all the epg is populated without any gaps.
NS, November 2013