TomCh

re. Plato Spanish: The same image crashes with an I/O ERROR in MAME too: https://archive.org/details/Plato_Spanish_Boot

And with CHOPLIFT.DSK (containing Star Blazer, Choplifter, Robot Battle, Night Crawler) and selecting "B" for Star Blazer.

Another repro: Boot DOS 3.3 System Master.woz d2= blank.woz INIT HELLO,D2 ; this leaves D2 at T18 Boot passport20220205.dsk d1= DOS 3.3 System Master.woz d2= some write-enabled, pre-INIT'd woz [C]rack...

NB, in ImageReadTrack(), there's the following redundant code: ``` const UINT track = pImageInfo->pImageType->PhaseToTrack(phase); ```

Thanks for sharing this info here. I'll try to find the Nibble article - it must be online somewhere. btw. how do you know that Ultima IV used this technique?

Thanks Oliver for raising this issue. I'm going to try to repro this on my local setup - but it'll be a //e not a IIgs for the real system.

Thanks for the info. I managed to do a few recordings. The real //e sounds clearer, whereas the AppleWin output has a "background noise" (hiss) component. --- As an aside...

>I generated with `RIFF_SPKR` btw, not in a release build yet, but at 08c730c6473ec4ebd5f38be4d5c78b4e9502cb76 I added new command line options to capture these RIFF/WAV files directly from the cmd line...

@genewitch - thanks for the suggestion (1KHz sine wave). I need to find some time, but it seems like a good thing to try.

No real progress, but let me just document some things I've noticed & tried so far. NB. This is mostly a note to myself as to what I've done, and...