Old DVD reader/writer can't see on my Macbook?

knightstyle

I want to sort out my old discs and plug a reader, USB3 so old, into my Macbook, the reader powers up but I cannot see it on the Macbook.  I installed Disc Master but that only sees the hard drive.  
Do I need to get a newer external reader?

MyRealNameToo

Do you have another computer you can see if it works on? 

Almost all USB CD drives should be just plug and play with MacOS

knightstyle

Well it makes a noise like it is working and the green light comes on but nothing on the Macbook.
No we don't have anything else to plug it into.

TadleyBaggie

Some external units need more power that can be applies by a single USB socket, I had one that had a double plug. can you see a power rating on the DVD player?

knightstyle

No power rating but I think it powers up OK, it wirs, clicks, wirs etc just like it should.  I just cannot access it from my Macbook.