It had a "Virtual Tape File System" that would have different folders for each file that the system automaticly generated images sequences for, not that they filled up more space, they was just generated when you clicked on a file. This Virtual Tape File System "VTFS" made it possible to just render a tga sequence into the tga folder and the movie file was updated. If you had a program that only read tiff, you grabbed the files from the tiff folder, or wrote to the tiff folder.

heres an old pdf describing it briefly: http://cvp.com/pdf/dps_velocity.pdf

We had one of these many many years ago, i didnt myself use it, but it seems like a quite nice idea (the VTFS part), that just never was updated to anything more recent.

What im asking is not to have the virtual conversion of files of this, but would it be possible to have some way to access into the MOX container and see the file sequence of the movie, and be able to update only part of it, much like we do now with image sequences, but just it all is contained in the MOX wrapper? Could this be possible to have the MOX act as a virtual folder accessible from the filesystem? or is this just way too complex and maybe need support from the filesystem itself (as far as i know the dps-velocity had its own filesystm on its video drive)

....

and another thing there might be an future codec option for MOX

GrassValley has a DNxHD/ProRes/CineForm/Dirac(?) flavour of their own called HQX that is quite comparable in quality to those others, but is without many of the restictions of them, and they made it free for all recently.

- Its free to read and write on both mac and windows

- unresticted dimensions (unlike DNxHD)

- alpha support

- fully user controlled bitrate (but still 5 presets for easy use)

- 10bit only (good!... but missing higher bit)

- VBR (the CBR nature of DNxHD (and ProRes?) sometimes generates too large files for the content)

unfortunately no 444 RGB sampling, but that is the only weakness apart from the low knowledge about it.

i dont know how open Grass Valley is about OpenSource, but it might be an idea to hear them out on what their stance are in including the codec into MOX? 

great project this MOX, i wish you luck in the Kickstater Brendan

- Robert