Can a VT2000 (A2000) run on VT4000 software?

[amiman99]

The Video Toaster 2000 will run on VT4000 software. When you install Vt4000 sw v4.1 from CD, it will ask you which VT you have, just choose VT2000.
I got running VT4000 on A2000 with 4.1 sw and VT2000 on A2000 with v4.1.
To do blue/green Chromakey, you need separate chroma device, like "Chromkey plus", if you dont have one you can only use Lumakey on Black or White background on VT.
You can install SCSI CDROM on A2000HD, just use longer SCSI cable. CDs are available on EBAY last time I checked.
Good luck.

[amiman99]

You need CD file system, many found on Aminet (like AmiCDROM) and device driver, like scsi.device (which is in ROM v2.1 and 3.0 and you have A2091), or usually comes with SCSI driver install package.
It's not straight forward, but I can help.
Note: you need OS v2 and up to run Video Toaster.