disk spammingpresent participle.
Flooding the market with a company's computer disks in an effort to get as many people as possible to install the software or subscribe to the service.
Example Citation:
"About a year ago, AOL stopped disk spamming because their computer system couldn't keep up with the millions of bandwidth-hogging new users they were signing up. But now that they've beefed up their system, they're ready to bombard us with diskettes again."
Mike Elgan, "Commentary," Mike Elgan's Win Letter