Hi,
I tried replying earlier but must have forgotten to commit.
Thanks for the files. I've struggled a bit with this one. I've managed to mount ttsystem and extract contentfs.gz. In linux it threw a bunch of ownership errors when unzipping it so I switched to Windoze and 7z. I managed to replace the mcta.dct and recompress the file in two passes. It was a bit smaller than the original so I should have been able to replace it, but I could not. I followed your instructions to increase the size of ttsystem. Although the file size increased I had no more space in the filing system . Fortunately it allowed me to delete the old file and insert the new one. I don't know what is happening here?
I may give the new ttsystem a go but I am very nervous of using it in case it makes a mess of my SatNav. Do you by any chance have a copy of your patched ttsystem (v10.855)?