Main 'differences' from Fa_Piter 34xx unit software and 37xx->34xx unit software appear to be as follows:
Possible File use:
006-D1283-01.bin appear to be related to Blue Tooth phonebook entries and have been around at least since 7xx series.
006-D2484-00.wav is a ring tone.
DigiGarmin.ttf is a Garmin true type font file.
006B121102.GCD is Touchpanel software version 1.23 for 37xx series
006B139900.GCD appears in HEX file to be related to BBP Software GTM60 (HD Traffic ?) Also mentions 006-B1401-00 ? Maybe gives 37xx ability for HD traffic using updated receiver??
Contains .png, .glx and xml files for specific countries.
Audible contains .aax files
Position contains .pos files
Files relate to Audio Book "The Far Hours"