FM 07 problem with the addon "die Verlängerung"

[messe]

i download that image. and than i install it with the daemon tools und burn it with the programm imageburn and now i want play the addon and than comes the failure message with the number 1000 please insert the original disc.

can me help someone what i have forgot or what i do must next?

wfg messe

P.S.: falls jemand deutsch beherrscht wäre mir die antwort in deutsch lieber.