Comment 1 for bug 147688

I can confirm the md5 mismatch here on Dapper:

Vorbereiten zum Ersetzen von flashplugin-nonfree 7.0.63.3ubuntu3 (durch .../flashplugin-nonfree_9.0.31.0.1ubuntu1~dapper1_i386.deb) ...
Entpacke Ersatz für flashplugin-nonfree ...
Richte flashplugin-nonfree ein (9.0.31.0.1ubuntu1~dapper1) ...
Downloading...
--13:19:57-- http://fpdownload.macromedia.com/get/flashplayer/current/install_flash_player_9_linux.tar.gz
           => `./install_flash_player_9_linux.tar.gz'
Auflösen des Hostnamen »fpdownload.macromedia.com«.... 88.221.138.70
Verbindungsaufbau zu fpdownload.macromedia.com|88.221.138.70|:80... verbunden.
HTTP Anforderung gesendet, warte auf Antwort... 200 OK
Länge: 2.608.602 (2.5M) [application/x-gzip]

    0K .......... .......... .......... .......... .......... 1% 164.24 KB/s
[...]
 2500K .......... .......... .......... .......... ....... 100% 237.61 KB/s

13:20:08 (227.32 KB/s) - »./install_flash_player_9_linux.tar.gz« gespeichert [2608602/2608602]

Download done.
md5sum mismatch install_flash_player_9_linux.tar.gz
The Flash plugin is NOT installed.

How can I remove the md5 check (as workaround)?