countif formula with multilple conditions and wildcards

i update a large cd list that is posted online. i use an excel spreadsheet to format the list multilple ways, plus keep basic statistics on the collection. i keep a count of the number of 2 cd sets, if it is recorded live, etc. sometimes a cd fits in more than one category at a time, and i type both into the box. to keep an accurate count of total number of cds, including the extra cds that come with cd sets, i have an extra column that i use to handle overflow. if it is a 2 cd set, i type a 1 in the overflow column. if it is a single cd, the cell is left blank. this way, i count the number of rows, plus all of the numbers in the column to get an accurate count of the entire collection.

for example, if i have a 2 cd set that is recorded live and is an import, in column A i would have a 1 (to account for the extra cd associated with the set) and in column B i would have 2 cd live import. i want to make sure that i can count this entry as 2 live cds and 2 import cds.

how can i manipulate the countif statement to account for all of this?

thanks,

Jason