A couple of days ago, I was given some old tapes with programs written on them. However, I am having some trouble with them.
I do not know what computer they were programed for. After recognising the ZX Spectrum preamble in some of them, I proceeded to obtain their .tzx file. They all work fine but the following two, that I have not been able to recover (continuous Tape Errors):
On the other hand, I also have the following tapes, which were not written for the ZX Spectrum. I have not able to identify the computer they were programed for. On Tape 3, the preamble is easily heard. Tape 4 starts at around 0:40. Both of them should have been written for the same computer (they were both sides of the same tape):
Any help or advices for recovering the first two tapes and for identifying the language of the latter ones will be highly appreciated.
- Tape 1 seems to have a copy of a Chess game called El Turco, with an unknown program called HEADER related to recording unprotected headers into tapes (?, I do not know what than can mean or be useful for). Link to its ROM:
Tape 2 is a damaged tape of LEMS TAPE RECORDER 5
No special updates for either Tape 3 or Tape 4; unknown compuerts. They seem not to be for ZX80, ZX81, Spectrum, Amstrad CPC, Atari, MSX nor Apple II.
UPDATE 2: Thank you very much for the support and the ideas! Now, all of the tapes have been either identified or restored but Tape 3.
These days we are suffering some inconvenience with our FTP server, I am sorry. Here are some pictures of the wavform of that recording:
It seems very strange to me that it does not seem to use any type of FSK modulation. Nevertheless, I hope this can help narrow down the different possibilities.
Thank you again!