My PC contains 2 DVD-ROM drives (one writer).  In the Menu I find 3 entries:

• /_dev/cdrom
• /dev/_sr0 (Ctrl-K)
• /d_ev/sr1

The action seem to have been assigned keyboard shortcuts 'd', 's' and 'e'. Inside Qt this leads to the action texts getting changed to

• /&dev/cdrom
• /dev/&sr0
• /d&ev/sr1

When I trigger the action that text containing the ampersand is passed to the function, leading to the following traceback:

D: 15:45:01,235 /usr/lib/picard/picard/disc.read:52: Reading CD using device: b'/dev/&sr0'
E: 15:45:01,239 /usr/lib/picard/picard/util/thread.run:56: Traceback (most recent call last):
File "/usr/lib/picard/picard/disc.py", line 54, in read
disc = discid.read(device, features=['mcn'])
File "/usr/lib/python3/dist-packages/libdiscid/compat/discid.py", line 176, in read
map(lambda feature: _decode(feature, 'ascii'), features))
File "/usr/lib/python3/dist-packages/libdiscid/compat/discid.py", line 111, in read
), 0))
File "/usr/lib/python3/dist-packages/libdiscid/_init_.py", line 260, in read
disc.read(device, features)
File "libdiscid/_discid.pyx", line 92, in libdiscid._discid.DiscId.read
File "libdiscid/_discid.pyx", line 70, in libdiscid._discid.DiscId._read
libdiscid.exceptions.DiscError: cannot open device `/dev/&sr0'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/picard/picard/util/thread.py", line 52, in run
result = self.func()
File "/usr/lib/picard/picard/disc.py", line 59, in read
except discid.disc.DiscError as e:
AttributeError: module 'libdiscid.compat.discid' has no attribute 'disc'

Either the & needs to be stripped from the text in tagger.py:706

or qt_set_sequence_auto_mnemonic could be used to disable the automatic assignment of mnemonics,|

or best use data() of the action to store the verbatim data.

Probably picard/ui/options/cdlookup.py needs to be modified too, but I have to few Qt knowledge to do that myself.