Q. How can I tell whether a recording is a CD or an LP in the catalog?
At a glance, you can see the difference by looking at the call number. Call numbers that start with 12/33 or Music 12/33 are LPs (records, if you will), and call numbers that start with CD or MusicCD are CDs.
If you'd rather filter your search results to get just CDs or LPs, you can narrow the formats you're searching by choosing the sound recording type. Do this at the beginning of a keyword search (see below), or after clicking on "Modify Search" at the top of your search results for a different type of search. From the Sound Recording list, choose "33rpm" for LP records.