According to ..

The Big Picture: 2001 on Video (http://www.visual-memory.co.uk/amk/doc/brown2.html) from the O.P.:

"If you're a 2001 fan lucky enough to have a laser disc player, there are six disc versions the best of which come remarkably close to the theatrical experience. These versions are:
...
"3 & 4. CAV and CLV Criterion disc sets. CAV is 6 sides, including "specials" the CLV is 3 sides without specials. These sets both use the same transfer, done in 1988 by the Voyager companies' legendary Maria Groumbos Palazzola. ... and Palazzola has written that he required 6 runs through with changes before he [Kubrick] would approve it. The transfer was "state of the art" for 1988, with good image detail, fairly low grain and good fidelity to Kubrick's detailed color scheme."

and ..

the LaserDisc Database entries for the "1989 CAV Criterion Collection #60 [CC1160L]" http://www.lddb.com/laserdisc/00997/CC1160L/2001:-A-Space-Odyssey:-Special-Edition-%281968%29 and the "1990 CLV Criterion Collection #60A [CC1235L]" http://www.lddb.com/laserdisc/03062/CC1235L/2001:-A-Space-Odyssey-%281968%29 ..

.. I'd say with confidence that they are the same, Kubrick-approved source.

OR ... to put it another way ... "Yes, that's a completely reliable figure."