That page contains updated and accurate data, was written by MrTikki after asking me and others lots of questions to write the best possible guides yet easy of understand.
Guide basically says that you should extract the data track as usual using IsoBuster, raw mode. You should dump the disc at least twice and make sure that dumps are identical, better yet if using different drives when possible.
Nothing more is needed for the DB, except obviously the errors count (1 expected error in the postgap zone) and perhaps a quick and dirty subcode dump got by CloneCD/CDManipulator (subdump only if are really interested in getting the cleanest subcodes possible, but it's very time consuming and for detecting CATALOGs and so on even a quick and dirty subcode dump by CloneCD is good enough) to determinate properly if the disc contains CATALOG and other possible flags. One good strategy and efficient would be dumping the disc as usual using IsoBuster, and then a CloneCD/CDManipulator (see the screenshot posted below) dump with the proper profile to kill two birds with one stone: to verify the IsoBuster dump and to get the quick and dirty subcode dump that you can upload (subcodes compressed are very small files).
For you personal backup and archive perhaps you could desire to create a mds file for that disc. Create it and archive it. If the dump by Alcohol lacks of subcodes mdf file must match the dump got by IsoBuster and/or CloneCD/CDManipulator.
P.S.: CDManipulator can create .ccd files if you choose that in the file output options once selected the multi-session mode. Just use any plain text editor to delete the ficticious ISRCs which uses to add due to random errors in the subcode not properly ignored.
[TRACK 1]
MODE=1
ISRC=0@41=0100013
INDEX 1=0
[TRACK 1]
MODE=1
INDEX 1=0
Subdump:
https://www.dropbox.com/s/dmkd2l490mtdrm1/subdump.zip
Reference of command line for a non-real Plextor drive:
subdump.exe -i g: -f test.sub -mode 1 -rereadnum 25 -speed 8 -flushspeed 8 -fix 2
Optimal speed depends on the drive used. Certain drives read better at lower speeds (4x/8x), others one at higher speed (24x and higher).
If there is a real Plextor drive which supports D8 command:
subdump.exe -i g: -f test.sub -mode 2 -rereadnum 25 -speed 8 -flushspeed 8 -fix 2
And if you are just interested in getting a quick and dirty subcode dump, somewhat cleaner than the one got by CloneCD/CDManipulator and verifying the linearity of subcodes frames add the -quick parameter.