Crosswords, no, Sudoku, yes.
With respect to the CVR my only suggestion would be to avail yourself of a good aviation legal chap familiar with the jurisdiction in which you find yourself. Seems to be a bit of a mine field.
http://www.pprune.org/archive/index.php/t-3809.html
Pilots to be put in CVR Legal Jeopardy
Case Note 15972 [1998] NZPrivCmr 1 - Union complains about Transport Accident Investigation Commission disclosure of cockpit voice recording
Gary Parata's Article Page 1
A major problem with those in the helo industry is the near complete lack of industrial muscle, and even if formal agreements can be arrived at with the company, a pilot is more than likely to be facing a lone battle.
ICAO Annex 13
http://www.airsafety.com.au/trinvbil/C619icao.pdf says in part,
Non-disclosure of records
5.12 The State conducting the investigation of an accident or incident shall not make the following records available for purposes other than accident or incident investigation, unless the appropriate authority for the administration of justice in that State determines that their disclosure outweighs the adverse domestic and international impact such action may have on that or any future investigations:
a) all statements taken from persons by the investigation authorities in the course of their investigation;
b) all communications between persons having been involved in the operation of the aircraft;
c) medical or private information regarding persons involved in the accident or incident;
d) cockpit voice recordings and transcripts from such recordings; and
e) opinions expressed in the analysis of information, including flight recorder information.
5.12.1 These records shall be included in the final report or its appendices only when pertinent to the analysis of the accident or incident. Parts of the records not relevant to the analysis shall not be disclosed.
Note.— Information contained in the records listed above, which includes information given voluntarily by persons interviewed during the investigation of an accident or incident, could be utilized inappropriately for subsequent disciplinary, civil, administrative and criminal proceedings. If such information is distributed, it may, in the future, no longer be openly disclosed to investigators. Lack of access to such information would impede the investigation process and seriously affect flight safety.