There seems to be a legal problem regarding the Drouin Quebec Church records and Ancestry's authority to offer those records. As a result Ancestry has pulled those records for the time being. This may or may not be permanent. Ancestry has not given any information out to its subscribers.
In the mean-time here is a link to the LDS Drouin Quebec Church records. Access is free; however, the years covered seem to end at 1899. I haven't checked out ever Church but those that I have end at 1899.
Also, these records are not digitally indexed. Most of the Church records do have their own index either at the beginning of the year or, more commonly, at the end of the year. I guess it is better than having no access. Here is that link...
http://search.labs.familysearch.org/recordsearch/start.html#c=13217...