These comments refer to a series of files whose names start with pgc88-, and the file qc8802. There is a file pgc01e on the diskettes for which no contents could be read. These geometry data are off several 5 1/4 inch diskettes received Jan. 2001. Diskette 5 was ureadable. Read errors are marked with a string DATA LOST where noted. Random binaries had to be rumoved at mny of those locations. Where not, two accidently joint parts were disjoint where it seemed reasonable. Lone octal characters (266) were replaced with a question mark. Rolf Maier