Computer repairs

I had to replace a DVD player in my Acer notebook. I went to Sham Shui Po, the Golden Shopping Centre. There is a very big computer type shopping centre there where the prices seem to be cheaper than Wan Chai Computer Market. I got a used DVD at Shop 46, T & L Technology Co. I have had work done by them before, they seem to be good at repairing computers, this is always useful to know.