375 petabytes into an LTO cart.

Note the experiment was conducted on 156.6 kB and the cart can not be damaged or the whole data would be corrupted.
Another limitation is the rate: 156kB in 2.5 hours; so nearly 1kB per minute.

It is estimated that one kilometer of DNA can store 74.7 GB, way less than the LOT-9 capacity of around 18TB (45TB compressed).

So it remains a science project for now.