Kent Sullivan's v1.5b Side A had two types of corruption: (1) a bad sector and (2) an incorrectly-compressed file.

The bad sector was Track 27, Sector 6 and caused two files within the archive "Font+Printer1.5b" to be corrupted: "font.gothic" and "font.ibm". Because the corruption obliterated the beginning of "font.ibm", LHX could not continue. Kent obtained a copy of v1.5h from Bo Zimmerman. Its archive of fonts and printer drivers was the same (except for a few files added at the end) so the corresponding data was used to "pave over" the corrupted sector.

The incorrectly-compressed file within the same archive was "info.epson24". Like with v1.3, a bug in the archiving utility (LHA rather than ARC) is suspected. Kent fixed the problem by comparing the byte stream for the v1.5b and v1.5h archives (Using HxD's "File-compare" command on the Analysis menu) and replacing the incorrect bytes.

Location  Trk Sec Byt Bad Good
========= === === === === ====
$00027C8D  33  04  14 $4A  $4C
$00027C8E  33  04  15 $0C  $75
$00027C8F  33  04  16 $00  $CC
$0002812B  33  09  13 $57  $A3
$00028135  33  09  06 $78  $77
$0002813B  33  09  12 $19  $4C
$0002813C  33  09  13 $17  $14
$0002814E  33  09  15 $31  $F2
$0002814D  33  09  16 $10  $6C

Location = location within the image, as reported by HxD (start = $00000000).

Trk, Sec, Byt = the track, sector, and byte corresponding to the location within the image (in decimal).

Bad = incorrect value; Good = correct value

** Many thanks to Robin Harbron for his knowledge and assistance! **