I have 2 Canon camcorders one of which is a MD205, the actual lead that connects to the camcorder is attached to the charging unit so I wouldn't have thought there is any way of replacing just that lead on its own. The mains lead has a 13amp plug on one end is detachable from the unit and looking at the plug it looks fairly standard (shaver/cassette appliance style).
Give Maplin a try I think this may be what you are after :- click here or even this one :- click here
Fairly certain they are the correct plug but suggest you take charging unit with you to make sure.
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