There's nothing secret there

Yes there is. The 'g' script on developer builds _only_ installs the player. Generally, the player build scripts on our compile box create a player.gz, which we Zmodem over to the unit. The g script saves some typing when we extract it.

The .upgrade file contains a bunch of other stuff, not just the player, e.g. it has a section that describes the changes to be made to the flash memory.

To emphasise, the 'g' script has nothing to do with .upgrade files.

We may release format specs for the .upgrade file at some point, however.

Roger - not necessarily speaking for empeg