If the card just had info on it, without the card being encoded, then you should be able to access it.
However, if the card was encoded, like say you set up the card as "Internal" rather than "External" storage, then the info is not accessible now. Once you reset the phone, you lost access to the data. When encoded, it is to prevent anyone from accessing it. The only way it would have been savable, and therefor accessible, would have been to have the info on the card without being encoded.