verify CD

hi $ dd if=/dev/cdrom | \ > head -c `stat --format=%s debian-testing-i386-netinst.iso` | \ > md5sum i found this on your site. its not working on wheezy. 2. md5sum with Brasero seems to have an bug(?): the "ok" messsage comes up without any testing. this works: dd if=/dev/sr3 | md5sum

cd 8.4 xfce

hi there seems to be a error on ISO 8.4 xfce -after installation ther was a error starting the first time synaptic. missing certificatesor something like that... 2. -synaptic is crashing always when i use a submenue... no error appears.. 3. I cannot verify the /dev/sr2 after i tried