9 Aug
2006
9 Aug
'06
3:51 p.m.
----- Original Message -----
From: "Chuck Guzis" <cclist at sydex.com>
To: <cctalk at classiccmp.org>
Sent: Wednesday, August 09, 2006 9:40 PM
Subject: Re: ComputerVision CADDStation tapes now available (sorta)
On 8/9/2006 at 10:48 AM Al Kossow wrote:
The standard for IBM labelled tapes is that there is 1 tapemark between
files, and 2 tapemarks to indicate that the last file has been read.
As there are two tapemarks between files, how can you then detect
end-of-data ? 3 or 4 tapemarks ?
Nico
Interesting note, a lot of these tapes have
hundreds of 0-length files
on them; these seem to be placed between files with actual data in
them. I have no idea if this was a standard practice (maybe
ComputerVision hadn't heard of "tar" :)).
Perhaps nothing more than a double filemark or its equivalent? Very comon
in 7- and 9-track tapes.
Cheers,
Chuck