Hi Joe, First of all, I am enjoying the discussions coming from cctech. It's encouraging to know that there are others out there with the collecting and preserving attitude. In answer to Bernd Kopriva's comments: I can only boot from another possible to use it normally My understanding is that with bootrom 3, or later, it should be possible to boot from any HP-IB attached storage device. That's probably provided the system booted then provides support for additional drive types which can be loaded as required. This is the situation with Basic 3.0, and later, where the system file SYSTEM_BA3 doesn't know about Amigo or CS80 devices, but the necessary BIN files can be loaded immediately after booting (by the bootrom). Pascal has to have the support available, but should boot I think. Your comment about checking the disk format is also very valid. It took me a while to realise that the floppy in my 9153C drive was HD floppy compatible! That's after having it in storage for many years. I am getting back into this stuff which is where I started all those years ago. Two questions: 1. You refer to sending all of your HP docs to Al for scanning. I don't know who Al is; please can you provide the link to his site. 2. Did you find your pascal install version? I have version 2.0 and 3.0. Unfortunately, I've lost the 'IO' file from the 3.0 version (disk read error), which leaves me unable to compile. So I'm looking for that. Did I have a backup? No. Have I learnt a lesson??????? Have I now made copies of the other disks (640k format)? Regards, Peter -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.10.5/403 - Release Date: 28-07-2006