i was tracking the strange thing, that i could rip with shell paranoia and not with grip one.
i noticed that i tried ripping in shell under root, so i tried under user too and it didn't work. i noticed that my user had no rights to access scsi-device (dev/sg0).
bash-2.05b$ cdparanoia -v -d /dev/sg0 1 bla.wav
cdparanoia III release 9.8 (March 23, 2001)
(C) 2001 Monty <email@example.com> and Xiphophorus
Report bugs to firstname.lastname@example.org
Checking /dev/sg0 for cdrom...
Testing /dev/sg0 for cooked ioctl() interface
/dev/sg0 is not a cooked ioctl CDROM.
Testing /dev/sg0 for SCSI interface
Could not access device /dev/sg0: Permission denied
generic device: /dev/sg0
ioctl device: not found
Could not open generic SCSI device /dev/sg0: Permission denied
i had no time and so i just chown'd the device to my user:
and got things working.