BALTIC.ROM
The difference from the standard Spectrum firmware with BASIC is in a thicker font.

BALTIC12.ROM
Firmware Sonnet v1.2. Has a colorful headband.
	`
BALTICT.ROM
Turbo Firmware. Has Russian characters in pseudographics

BALTICR.ROM	
BALTIC RUSSIAN 1988.

BALR-CPM.ROM
Firmware 1988 BALTIC RUSSIAN & CP/M. As part of the ROM disk, it has a TF-Copy copier, a CP / M bootloader and an assembler.

BALT-CPM.ROM
Firmware 1992 Baltic turbo. The ROM contains a copier, a CP/M bootloader, a disk formatter, and a Tape Test program. Russian symbols are also stitched into the pseudo-graphics.

BALTA-CPM.ROM
Another firmware 1992 Baltic turbo. It differs from firmware No. 5 in the color of the ROM-disk menu and the standard pseudographic character generator.