Here is one I own in both my laptops!
Optiarc from SONY/NEC
Multifaceted, powerful - and only 12.7 mm in height.
We’d like to present two great new units with multiple read and write functions and the most compact form imaginable. They read DVD-ROMs with up to 8x speed and CD-ROMs with up to an amazing 24x speed.
The AD-5540A will impress you just as thoroughly when writing, due to their excellent values in all formats. It writes to DVD-Rs, DVD +Rs and DVD +RWs at 8x speed or DVD-RWs at 6x speed. And it handles DVD-R DL/DVD +R9 format disks just as comfortably (4x) as CDs in -R/-RW formats (24x).Product Specification
Read Speed: DVD: 8x max. CD: 24x max.
Transfer Rate write: DVD-R: 8x max. DVD +R: 8x max. DVD-RW: 6x max. DVD +RW: 8x max. DVD-R DL: 4x max. DVD +R9: 4x max. CD-R: 24x max. CD-RW: 24x max.
Access time: DVD: 180 ms CD: 150 ms
Mechanism: Tray load mechanism
Interface: E-IDE / ATAPI
Burst transfer rate: PIO mode 4 / Ultra DMA 33
Media supported: DVD-ROM, DVD-R, DVD-R DL, DVD-RW, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R, CD-RW
Modes supported: DVD-Video, CD-ROM XA, CD-Audio, CD Extra, CD Text, CD-I Ready, CD-Bridge, PhotoCD, Video CD, Hybrid CD
Writing methods: DAO, SAO, TAO with zero gap, variable or fixed packet, multisession
Compatibility: MPC Level 3, MultiRead, PC2001
Weight: 0.18 kg
Dimensions: 128 mm x 12.7 mm x 129 mm
Special features: 12 cm and 8 cm CD and DVD media are supported, buffer under run error prevention