Some hints concerning the Appname

[SimonLothar]

In the G1A-header at offset 0x20 resides a string which is used as MCS-working directory name. It must start with @. The following 7 characters usually correspond to the G1A-filename, which ain't necessarily so. This string (including the @) is returned by syscall 0x0462, if not changed by syscall 0x0463.
At G1A-header offset 0x1D4 resides a max. 8 byte string, which is shown in the SYSTEM VERSION menu. This string usually corresponds to the G1A-filename, which ain't necessarily so.

[cakeisalie5 Profile Website]

That settles things down, thanks