OS: Windows 7
Bitcoin-Qt: 0.8.2
Disk: Samsung 830 series 250 GB SSD

Occasionally Bitcoin-Qt will pop up a "low disk space" error message and then close after I click OK.  While the message is being displayed other programs, including Google Drive and Windows Explorer, are also reporting low disk space.  As soon as I click OK the disk space on the Bitcoin data directory disk goes back to normal showing over 100 GB free.  So it appears that something is causing Bitcoin-Qt to fill up my disk, but that these files are temporary in nature as they are apparently deleted when the client exits.  It is apparently not a virtual memory issue either as I have the page file size set to a maximum of 1 GB.

I have not seen this behavior with bitcoind 0.8.2 on another machine that runs Linux.  Has anyone else experienced this?