sampson wrote on 2025-09-14, 20:09:

Niemi_81 wrote on 2025-09-14, 17:50:

After getting everything set in autoexec.bat & config.sys i am having trouble accessing emulated CD drive.
Sometimes it shows image file loaded, sometimes not. PGUSINIT / CDLIST never works. Same thing in USB mode. Any tips for me or could my Picogus be faulty. Thanks!

Which flash drive brand/model, capacity, and partition configuration?

I have a bunch of different brand-name USB flash drives, ranging in age from 6-12m old, to 8-10yr old, and in various capacities. Some flash drives work flawlessly, and some not-so-much. I see the same thing with the CH375 interface as well. For my PicoGUS I am using a Sandisk Extreme Pro 256G at the moment. It is configured with an 8GB FAT32 partition, with the rest of the capacity unallocated. I have several Team Group flash drives in 32GB and 128GB capacities and they also work well with both solutions (again, using 4-16GB partitions). I've got a couple flash drives that just act flaky and unreliable. Good luck!

I guess i will try a different USB sticks then, i have tried just a white 8Gb Sandisk stick. It has a LED light and it is blinking quite fast all the time its connected to Picogus, as if data ia being read at all time. FAT 32, probably just 1084kb partitioning or some other default. Thanks for the tips!

Took out some crappy Aliexpress 16Gb stick, and it worked just fine. 🙏

Niemi_81 wrote on Yesterday, 13:28:

Took out some crappy Aliexpress 16Gb stick, and it worked just fine. 🙏

FWIW I am using a Sandisk Ultra Fit 128GB USB 3.1 drive which works perfectly with the PicoGUS. I would recommend this device to anyone looking for a USB drive to use for optical emulation as it's extremely fast copying disc images, small so it doesn't stick out much and cheap to buy on Amazon.

NeoG_ wrote on Today, 02:57:

Niemi_81 wrote on Yesterday, 13:28:

Took out some crappy Aliexpress 16Gb stick, and it worked just fine. 🙏

FWIW I am using a Sandisk Ultra Fit 128GB USB 3.1 drive which works perfectly with the PicoGUS. I would recommend this device to anyone looking for a USB drive to use for optical emulation as it's extremely fast copying disc images, small so it doesn't stick out much and cheap to buy on Amazon.

I used the 32GB version of the same USB stick and I had problems with it. 😀 Changed it to an older/slower USB stick and that worked perfectly.

Yoghoo wrote on Today, 05:06:

NeoG_ wrote on Today, 02:57:

Niemi_81 wrote on Yesterday, 13:28:

Took out some crappy Aliexpress 16Gb stick, and it worked just fine. 🙏

FWIW I am using a Sandisk Ultra Fit 128GB USB 3.1 drive which works perfectly with the PicoGUS. I would recommend this device to anyone looking for a USB drive to use for optical emulation as it's extremely fast copying disc images, small so it doesn't stick out much and cheap to buy on Amazon.

I used the 32GB version of the same USB stick and I had problems with it. 😀 Changed it to an older/slower USB stick and that worked perfectly.

How odd, maybe the 32GB and 128GB drives have a different controller

NeoG_ wrote on Today, 07:04:

Yoghoo wrote on Today, 05:06:

NeoG_ wrote on Today, 02:57:

FWIW I am using a Sandisk Ultra Fit 128GB USB 3.1 drive which works perfectly with the PicoGUS. I would recommend this device to anyone looking for a USB drive to use for optical emulation as it's extremely fast copying disc images, small so it doesn't stick out much and cheap to buy on Amazon.

I used the 32GB version of the same USB stick and I had problems with it. 😀 Changed it to an older/slower USB stick and that worked perfectly.

How odd, maybe the 32GB and 128GB drives have a different controller

Could be. Polpo also said he saw something with a Sandisk USB 3.2 stick. My problem was that playing music from a CD would be too slow. So sound was playing at 90% speed. Sounded very funny. 😜