The phrase "identifying the contents" is correct and can be used in written English.
It means to determine or recognize what is included or contained within something. Example: I spent the afternoon organizing my closet, carefully identifying the contents of each box before placing it on the shelf.
It arrived on a stylish silver tray covered with a paper doily identifying the contents of the eight shot glasses.
The pink Post-Its identifying the contents of the cabinets behind their makeup-chair stations read WOLF EARS and LOOSE HAIR and ADD'L BURN SCARS.
Belknap discovered the bone while identifying the contents of ancient human feces excavated from a lower layer at a rock shelter known as Hinds Cave in Texas.
The team has lowered a camera into the crate in the Kachin state capital Myitkyina, but says muddy water has stopped them identifying the contents.
These HITs are generally very small in nature (such as identifying the contents of an image), and generally very high in quantity (it is not unusual for requesters to post thousands of tasks in a single batch).
We propose to develop a written and audio-visual material on a website based on plain local languages (in Spanish, including indigenous languages and Portuguese) that could be printed on one page in a letter case easily read (size 12), with headings and titles identifying the contents in a sequence that could be followed as needed.
Today at its F8 conference, CTO Mike Schroepfer described new systems for identifying the content and context of videos and sentences.
Which means Facebook needs to get much better at identifying the content that I'll find interesting.
Basic factors, which can be associated with image components, are not specific enough for uniquely identifying the content of an image under study.
Researchers defined several themes for volunteers to use in identifying the content of their dreams.
Instead, marketers should focus on identifying the content that is working and develop a strategy that spreads this effective content through every channel.
