An electrical device, in particular a car radio, allows more user-friendly
checking of access authorization is described. The electrical device
includes a disc drive for a storage medium, a read device being provided
for reading data stored on the storage medium placed in the disc drive.
Device-specific data is stored in a memory assigned to the electrical
device. Data read from the storage medium is compared with the
device-specific data. The electrical device is only rendered operational
if the data that has been read matches the device-specific data.
