Pb. archiving HP-150 disks with Teledisk - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: Not HP Calculators (/forum-7.html) +--- Forum: Not quite HP Calculators - but related (/forum-8.html) +--- Thread: Pb. archiving HP-150 disks with Teledisk (/thread-15979.html) |
Pb. archiving HP-150 disks with Teledisk - PascalG - 11-29-2020 07:01 PM I have several HP-150 and HP-110 floppy disks that I want to archive in order to preserve them. I tried to use Teledisk 2.16 on an old Olivetti PC but I keep having errors. Right at the beginning when Teledisks tries to detect the floppy format, it detects that it's a double density (which is not correct as it is a single density) and then it says "Drive A: is not ready". I tried to check my floppy disk controller with testfdc and it gives me this (see attachment). Is it a compatibility problem with my floppy disk drive ? any advice ? [attachment=8903] RE: Pb. archiving HP-150 disks with Teledisk - toml_12953 - 11-29-2020 07:07 PM (11-29-2020 07:01 PM)PascalG Wrote: I have several HP-150 and HP-110 floppy disks that I want to archive in order to preserve them. I tried to use Teledisk 2.16 on an old Olivetti PC but I keep having errors. Right at the beginning when Teledisks tries to detect the floppy format, it detects that it's a double density (which is not correct as it is a single density) and then it says "Drive A: is not ready". It could be an incompatibility with your floppy controller rather than your disk drive. If the Olivetti has a free ISA slot, try to get an Adaptec AHA 1522A SCSI adapter for it. That includes a floppy controller that's 100% compatible with all the testfdc formats. I have one and have the SCSI turned off and just use the FDC on it. RE: Pb. archiving HP-150 disks with Teledisk - Dave Frederickson - 11-29-2020 07:36 PM (11-29-2020 07:01 PM)PascalG Wrote: Right at the beginning when Teledisks tries to detect the floppy format, it detects that it's a double density (which is not correct as it is a single density) and then it says "Drive A: is not ready". That's strange. All of the 110/150 discs I've worked with are double-density. There are DOS drivers that will allow one to work with HP formatted discs on a PC. Here's one. https://drive.google.com/file/d/1Vabp3-93H_2nmZEzfbQLOMmpkm4Q4zbT/view?usp=sharing Dave RE: Pb. archiving HP-150 disks with Teledisk - PascalG - 11-29-2020 08:08 PM (11-29-2020 07:36 PM)Dave Frederickson Wrote:(11-29-2020 07:01 PM)PascalG Wrote: Right at the beginning when Teledisks tries to detect the floppy format, it detects that it's a double density (which is not correct as it is a single density) and then it says "Drive A: is not ready". Yes you’re correct I made a mistake, they are single side but double density. RE: Pb. archiving HP-150 disks with Teledisk - PascalG - 11-29-2020 08:13 PM (11-29-2020 07:07 PM)toml_12953 Wrote: That includes a floppy controller that's 100% compatible with all the testfdc formats. I have one and have the SCSI turned off and just use the FDC on it. Do you know what format listed in testfdc I should check to be compatible ? RE: Pb. archiving HP-150 disks with Teledisk - Dave Frederickson - 12-02-2020 10:19 PM (11-29-2020 08:13 PM)PascalG Wrote: Do you know what format listed in testfdc I should check to be compatible ? Here's the table from the ImageDisk doc. Code: Drive type Cyls Rpm Rate So for HP 110 and 150 floppies, you only need to pass the double-density test at 250 kbps, which your controller does. Dave RE: Pb. archiving HP-150 disks with Teledisk - PascalG - 12-03-2020 06:03 AM (12-02-2020 10:19 PM)Dave Frederickson Wrote: So for HP 110 and 150 floppies, you only need to pass the double-density test at 250 kbps, which your controller does. Thanks very much, this narrows the causes for my problem. I will try with different versions of teledisk. RE: Pb. archiving HP-150 disks with Teledisk - Dave Frederickson - 12-03-2020 04:39 PM TeleDisk 2.16 is the correct version to use with 3.5" media. Are you running TeleDisk under DOS? Are you using DS/DD media and not HD? Did you try the driver? Dave RE: Pb. archiving HP-150 disks with Teledisk - PascalG - 12-03-2020 09:53 PM (12-03-2020 04:39 PM)Dave Frederickson Wrote: TeleDisk 2.16 is the correct version to use with 3.5" media. I made some further tests and I found that the problem was the disks themselves. I was trying to copy a set of Lotus 123 disks and for some unknown reason teledisk would give me a reading error on several disks. I tried with another set of disks (Condor database) and it worked fine ! On each track it would give a reading error message saying that sector 17 of each track was different in size (128 instead of 256), but the process continued. The only problem is that when I try to recreate disks from teledisk image it gives me an error reading A: side 0 sect 17 on each cylinder (probably linked to this size of 128). I had to press a key after each cylinder, which is not convenient. I made some dumps of the disks using SuperCard Pro and it worked fine and the process is straightforward (no errors). I then used the Sydex driver you mentioned (excellent software!) in order to test the copies of the disks made with SCP on my Olivetti and everything was ok. :-) I will continue with SCP for the archiving of my disks, it's more reliable. Thanks very much for your help !! |