dsk to floppy copy on a PC to be used on msx

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By meits

Scribe (6491)

meits's picture

09-06-2016, 12:53

Toni Ramirez wrote:
Meits wrote:
Toni Ramirez wrote:

Well, how can I create a disk image with a MSX emulator? I don't have a clue, I've only tried to create images with the Disk Manager so far.

Make a copy of an existing DSK file, rename it and format it. That's the easiest.

Definitely there's something I don't grasp here LOL!

I click on some already made -and working- disk image, CTRL+C, CTRL+V, rename it, open the blueMSX and then... format? So... erase?

If you want an new/empty disk image you can format the copied/renamed diskimage in bluemsx indeed.

By Manuel

Ascended (18719)

Manuel's picture

09-06-2016, 15:28

Copy a disk image that worked (one of these game collection ones you had working), rename it, use it in your favourite MSX emulator with the/an original SVI-738 diskROM and format it there. Now you have a blank disk image suitable for your SVI-738.

But did you already try to copy files with Windows XP to your floppy disks that you formatted on the real SVI-738?

By Toni Ramirez

Expert (73)

Toni Ramirez's picture

09-06-2016, 16:32

Manuel wrote:

Copy a disk image that worked (one of these game collection ones you had working), rename it, use it in your favourite MSX emulator with the/an original SVI-738 diskROM and format it there. Now you have a blank disk image suitable for your SVI-738.

But did you already try to copy files with Windows XP to your floppy disks that you formatted on the real SVI-738?

Ok, so these instructions are for formatting "from a MSX", right? Well, I'll try it, but yes, I tried copying games to disks formatted in the real MSX and as I said, the number of not working disks after putting games in them increases.

By Manuel

Ascended (18719)

Manuel's picture

09-06-2016, 22:11

What do you mean exactly with "the number of not working disks after putting games in them increases"?

The instructions were for formatting a disk *image* properly, so you can use simpler tools like wrdsk to put files on them and dcopy.exe to write it to floppy. Avoiding Disk Manager to see if the problems originate there.

By romanoaj

Rookie (20)

romanoaj's picture

16-01-2022, 04:46

Smile

By romanoaj

Rookie (20)

romanoaj's picture

16-01-2022, 04:45

ray2day wrote:

if you have a mac it is even easier;
-> download .DSK file to desktop
-> rename it to .IMG
-> double click open the IMG (will mount as 'Untitled' disk on the desktop)
-> add/remove files (max. up to 720kB)
-> put 'Untitled' disk to the trashcan
-> rename .IMG file it back to .DSK
a voila!

You don't know how much easier my MSX life is now that I now this. Cheers mate! (a letter from the distant future)

By gdx

Enlighted (5343)

gdx's picture

16-01-2022, 07:34

Be very careful with this method because MacOS writes hidden files to all disks. And for this, it writes temporary data in areas considered unused. So in addition to these annoying hidden files, simply opening an image can overwrite sector data. MacOS is not-so-delicate. Use this method only with DSKs reserved for your transfers or with DSKs that are write-protected to read files.

By mcolom

Master (238)

mcolom's picture

16-04-2022, 17:25

It's funny what is happening to me, because I can format disks on the MSX and they work perfectly.
But if I try to read them on Linux, the USB disk unit fails with
sd 6:0:0:0: [sde] tag#0 Sense Key : Medium Error [current]
sd 6:0:0:0: [sde] tag#0 Add. Sense: Incompatible medium installed

I guess there's nothing I can do, since probably it's the firmware of the USB unit which simply refuses the read the disk physically if it doesn't find the contents it expects. Quite surprising to me, but anyway... now they're MSX disks forever Big smile

By sdsnatcher73

Prophet (3007)

sdsnatcher73's picture

16-04-2022, 20:16

I'm not an active linux user on desktop (I managed many linux servers though). I do believe you can (need to?) use https://www.gnu.org/software/mtools/ to read DOS disks. Worth a shot anyway...

By mcolom

Master (238)

mcolom's picture

16-04-2022, 23:01

sdsnatcher73 wrote:

I'm not an active linux user on desktop (I managed many linux servers though). I do believe you can (need to?) use https://www.gnu.org/software/mtools/ to read DOS disks. Worth a shot anyway...

Yes, they're installed and I have no problems mounting FAT16 images. It's something more low-level, since I can't even read the device (/dev/sde) when the floppy has been formatted by the MSX. And the other way around, if I copy a formatted image directly into the device, it works on Linux, but not on the MSX. On Linux it says it can't read sector 0. So I suspect it's very low-level, but I don't know what exactly.
It's not really a problem for me, since if they work on the MSX it's fine. It's only that it'd be easier for me to use the USB unit in my PC to copy files. I guess this modern USB unit is quite picky with the physical encoding, ouch...

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