This little jewel is something I was always planning to write. Before
I finished my stuff, Carsten
Sorensen from Denmark wrote and published his software.
I haven't tested it yes, but the author claims it will provide all
low resolution modes at 5 pixel depths (8, 15, 16, 24, 32).
OK, don't expect too much as this is just an alpha release, but you
may always try it...
It is shareware and you may dowload it here (.ZIP containing software
and description text) - VBG200 v.0.5.