does Sierra support a Lightscribe cd burner

The answer is mostly no.

LightScribe as Dialabrain indicated has been officially discontinued by the inventor i.e. HP. As a result HP are not producing new updated drivers to utilise this feature, obviously the hardware can still do it so if you have an older version of OS X and the old version of suitable applications then your LightScribe drive will still work.

I believe the main reason the old driver no longer works dates back to the introduction of El Capitan i.e. OS X 10.11 this included a new security feature called SIP designed to help protect against malicious software. A side effect was that many drivers needed to be updated to work with SIP. Since HP had discontinued their LightScribe support they never produced such an updated driver.

Now this does open a small possibility of being able to install and use the old strictly speaking incompatible driver. You can do this if you chose to deliberately disable the SIP protection.

I would suggest only trying this on a separate test installation of Sierra and not your normal system.

See https://smilesoftware.com/disclabel/lightscribe this might give you the last versions of LightScribe software.

See https://www.igeeksblog.com/how-to-disable-system-integrity-protection-on-mac/ for instructions on how to disable SIP

If you need an application to do the actual printing then see the following

https://lightscribesoftware.org/mac-lightscribe-software/ this is not free but is also not expensive and seems be the most up to date application available but still subject to the SIP problem. The link on that page to here https://lightscribesoftware.org/how-to-install-system-software-on-el-capitan/ confirms I was correct about this being a SIP problem. It also suggests my solution will work.

Other older possible applications -

http://www.lacie.com/gb/en/support/software/lightscribe-mac/

https://lightscribesoftware.org/freesoftware/mac/

Unlikely since HP abandoned LightScribe in 2013.