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It might be worth noting that using a CD-R with the 240p test suite on it (or any CD-R for that matter) can damage the laser lens. I am convinced that that is what happened to mine based on conversations Ive had with other people familiar with the Dreamcast

Does the Dreamcast microphone test work for everyone else? After I record and hit playback, I can only hear static. I tried both 11khz and 8khz, with the pad on and off. Just static. I did buy it used, so I'm wondering if the microphone no longer works.

i found the list. its missing quite a few, including Dreamcast, 3DO, Jaguar. how do you figure out the ratios?

So upon learning that the pixel aspect ratio for SNES and NES are 8:7, I realize now that the monoscope pattern with the red squares in correct, so I apologize. I had no idea that consoles didnt just display square pixels. What other consoles had rectangular pixels besides NES and SNES?

I have curviness in the upper corners of my PVM. I have never heard of anyone being able to fix that.

NTSC. 240p. Sony PVM-2530 as well as an old Mitsubishi CRT from 1992.

I don't trust the monoscope pattern in the Dreamcast 1.29 release. The Genesis and SNES ones looked fine, but it's definitely not a perfect square (the red) on my monitors when I leave the settings as they are.

2.43% wider than it is tall. Tried this on multiple monitors.

I just double checked it with the Genesis version. I get a perfect red square. So yeah, check the DC version against the other ones and let me know what you find.

The hero we need, but dont deserve

ok i think i see where the problem may lie. in Paint, when you stretch the picture, its not stretching the middle part of the pattern...

You can try this experiment yourself. Load up the 320x224 monoscope pattern into an emulator, take a screenshot and put it into Paint. Stretch the vertical size to 240 so that youre looking at a 4:3 picture, the  measure the red "squares." theyre going to be off.

Thanks. Can you point to any HUDs or objects in a Genesis title that are supposed to be squares/circles so that I can cross reference it with Keith Reney's squares?

Regarding the monoscope: You say that if the aspect ratio is set correctly, the red parallelograms will appear as perfect squares. However, I am getting slightly different results. If I run Sonic the Hedgehog in standard 320x224, the middle part of the sunflowers appear as perfect circles, and the lives icon with Sonic's face appears as a perfect square. And also, the squares at the top of the monoscope appear as perfect 14x14 squares. But if I stretch the picture so that the red "squares" become perfect squares, I no longer have perfect geometry. And even if I stretch the 320x224 picture to 320x240, the red "square" becomes 105x102px

The main issue with the Dream Blaster (light gun for the Dreamcast) is that most people report having issues with them where it doesnt want to register a hit even though youre pointing right at it. and so its not known if the gun itself is bad or there is an issue with the monitor. some people say their gun works just fine. so youd have to find someone with a gun that works just fine. unfortunately I fall into the former category of having issues with mine. id be willing to lend you whatever you would need, but again, dont know how well its all working. I also have a PS1 GunCon, a SuperScope, NES Zapper. I think the hardware tests on your 240p test suite are the most valuable part of it so itd be great to see that expanded with all of the different accessories out there.

In future versions, can you add testing features for accessories like the Super Scope, Dream Blaster, etc. to test them? Similar to the calibration test in House of the Dead 2 but make one for all the light guns. also the SNES mouse