Will here's the pros & Cons:
BTC DRW1008IM:
Pros
8x DVD+R writing
4x DVD+RW/-R writing
40/24/40 CD-RW
Very Good CD/DVD error correction
Good writing quality with CD
Creates working backups of SafeDisc v.2.80
Supports CD-Text (reading/writing)
Supports 99min audio discs
Fast DVD ripping
Fast ripping speed with protected game discs
Cons
6x DVD±RW reading
Cannot playback/rip CDS200 Audio CD
Low DAE speed
Increased DVD seek times
Writing quality problems with specific CD-R
BTC plans to release a Bit Setting software for the drive in order to achieve better compatibility for the DVD+R/+RW format.
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Optorite DD0401:
Pros:
8x DVD+R writing
4x DVD+RW/-R writing
40/24/40 CD-RW
Includes HD-Burn, Burn-Proof
Very good CD and DVD seek times
Good CD-R/RW/DVD-ROM/DVD±R/RW reading speed
Excellent error correction with defective / scratched CD-R media with defects up to 1.5 mm
40x max DAE
Good CD-R writing quality
Supports CD-Text (reading/writing)
Low C1/C2 error measurements
Low price
Cons:
Problematic error correction performance with dual layer scratched DVD-ROM / DVD Video
Limited media support for 8x DVD+R writing
2 MB buffer
Cannot backup protected discs (SaveDisc v2.x)
High 3T jitter