techtravels.org

inital results on error correction

While I have yet to actually implement the full-scale error correction as I want to, I did some manual tests today. I basically took a track that I was erroring out on, and swapped in 1-bit away values for the bad bytes.  In some cases, it appeared...

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upgraded Tivo HD serial 652

I followed the instructions at but when I tried to expand the partition after the copy, it failed with the following error: Primary volume header corrupt, trying backup. Secondary volume header corrupt, giving up...

error correction using hamming distances

I’ve been thinking for quite some time about error correction.  About using the structure of the MFM to our advantage.  I’ve come up with something although I haven’t implemented the idea yet. As you...

New Reverse Engineering PALs page

I’ve recently put a new page online on the site. It hosts a basic outline on different techniques to enable one to reverse engineering a PAL, and produce a modern equivalent. Right now, there are about a dozen...