Should I replace my DVD burner?

[gabox]

hi,

Today I burned 3 DVD-R DL and I get theses issues:

data to be burned: total 7.89 GB
all discs same brand


disk 1 just burned 0.47 GB using MagicISO
disk 2 burned 7.89 GB using MagicISO
disk 3 burned 7.89 GB using Nero Burning ROM 10

disk 1 was unable to be read it, obviously, it was an incomplete burn
disk 2 and 3 were readable but when I try to copy them to the HDD
the transfer rate was very low like 200-300 KB/s and remaining copy
time showed 7 hours.


Later I put 2 other DVD-R DL that I burned a long time ago with these results:
disk A copy 100% with transfer rate 4-5 MB/s
disk B copy was almost imposible since the transfer rate was 150 KB/s
and remaining copy time showed 1 day


So my DVD burner is in bad state?
Should I replace it ASAP?

I don't want to lose more DVD-R DL

thanks

 

[gabox]

update

I put the disks 1 & 2 in another PC
and the low transfer rate remains equals.


It seems my DVD burner is doing bad burnings