theelf wrote on Yesterday, 07:30:

Hi thanks fo reply!!, im in DOS, using for playback, quickview pro […]
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polpo wrote on Yesterday, 00:02:

Are you in DOS? Windows?

Hi thanks fo reply!!, im in DOS, using for playback, quickview pro

- Picogus is in USB mode
- Video is a Cinepack 12fps, 320x200 video, tried ADPCM 22khz mono audio or PCM 8bit 11khz, interleave every frame. Video is 40min long, 560mb, then 230-250kb sec
- Tried too msvideo 1 256colors, 12fps, same audio options and interleave, 640mb more or less 270kb sec
- Tried iso and cue/bin

Bot videos i burn in CD and test in a 4x IDE drive and play fine, from HDD too

Using Picogus CD give me stops every 2 or 3 seconds because frameskip

NeoG_ wrote on 2026-04-13, 23:16:

Check your transfer speed from the virtual drive using something like speedsys, if it's running at full speed it should be able to get 3.5x with bin/cue images and 4.5x for ISO images. I had some settings in the BIOS like IO recovery period which was slowing down the virtual drive speed but still allowed the audio side to work fine.

Hi! i get consistent 600kb sec transfer rates in speedsys, and i can confirm by copy a file in DOS is correct

The attachment IMG_20260414_092524.jpg is no longer available

In fact my IDE 4x drive is slower, because i think i use CDRW unit and the unit is old, read at 360-420kb sec, but anyways video play smooth from real CD

I dont have a IO recovery period option in bios

thanks!

I wonder if the MKE cdrom has naturally higher CPU overhead and its running out of CPU power to copy from ISA bus and decode at the same time

NeoG_ wrote on Yesterday, 08:04:

theelf wrote on Yesterday, 07:30:

Hi thanks fo reply!!, im in DOS, using for playback, quickview pro […]
Show full quote

polpo wrote on Yesterday, 00:02:

Are you in DOS? Windows?

Hi thanks fo reply!!, im in DOS, using for playback, quickview pro

- Picogus is in USB mode
- Video is a Cinepack 12fps, 320x200 video, tried ADPCM 22khz mono audio or PCM 8bit 11khz, interleave every frame. Video is 40min long, 560mb, then 230-250kb sec
- Tried too msvideo 1 256colors, 12fps, same audio options and interleave, 640mb more or less 270kb sec
- Tried iso and cue/bin

Bot videos i burn in CD and test in a 4x IDE drive and play fine, from HDD too

Using Picogus CD give me stops every 2 or 3 seconds because frameskip

NeoG_ wrote on 2026-04-13, 23:16:

Check your transfer speed from the virtual drive using something like speedsys, if it's running at full speed it should be able to get 3.5x with bin/cue images and 4.5x for ISO images. I had some settings in the BIOS like IO recovery period which was slowing down the virtual drive speed but still allowed the audio side to work fine.

Hi! i get consistent 600kb sec transfer rates in speedsys, and i can confirm by copy a file in DOS is correct

The attachment IMG_20260414_092524.jpg is no longer available

In fact my IDE 4x drive is slower, because i think i use CDRW unit and the unit is old, read at 360-420kb sec, but anyways video play smooth from real CD

I dont have a IO recovery period option in bios

thanks!

I wonder if the MKE cdrom has naturally higher CPU overhead and its running out of CPU power to copy from ISA bus and decode at the same time

I tested in a pentium 200 and videos are slow too using picogus

Funny thing is that msvideo1 avi play smoth from HDD in a 286 25mhz

Maybe is ISA bus that saturate?

The only videos i can play smoth using picogus CD is msvideo1 optimized for CDrom playback at 150k

Hi and thanks again for the great work.

I was wondering if there are plans for upgrade path for 1.x card owners to upgrade their cards with pico 2?
Chips are pin compatible... I think.

:edit
I can also confirm that with 4.1 update usb mode no longer finds images from previously working usb card... on the other hand sb mode now works with images that 4.0 could not run 🤷‍♂️

I'm experiencing a different error with the 4.1.o update - GUS mode appears to be broken. When I "pgusinit /mode gus" it gives me:

ERROR: card is not alive after rebooting firmware

Trying pgusinit again confirms "ERROR: no PicoGUS detected!"

Rebooting brings it back alive in SB mode; switching to USB mode and back works; resetting back to /defaults doesn't help.

Reverting back to 4.0.0 brings GUS mode back to normal.

Can also confirm that Gus mode and cdlist are not working anymore with 4.1.0. Rolling back to 4.0.0 makes everything working again.

I’ve pulled the v4.1.0 release. Sorry about the disruption. Serves me right for doing a release without my usual testing from the final release artifacts.

All good m8! Thrilled that you're continuing to support and develop the project well past what anyone could have expected. 🙂

polpo wrote on Yesterday, 17:46:

I’ve pulled the v4.1.0 release. Sorry about the disruption. Serves me right for doing a release without my usual testing from the final release artifacts.

well i think everybody here all we are happy to help being beta testers!! thanks for your work

Releasing BETA firmwares clearly labeled "just for testing" might not be such a bad idea to lighten your workload Polpo. Or building some test automation suit to run thru all scenarios on real hardware without need of a human.

Could someone please recommend a USB hub to use the mouse and CD-ROM emulation simultaneously? Would any powered USB 2.0 hub work? And there is no additional setup needed with the hub?

It would be amazing if a future version of PicoGUS had dual USB ports. The dual emulation of USB mouse and CD-ROM for $50 is really amazing value.