HP Media (CD-R/CD-RW) C4438A is compatible in the following HP Models:

PC Combo Drives

HP DVD+RW/DVD+R/CD-RW COMBO DRIVE - A7781A

PC CD-RW Drives

CD-Writer Plus 8000 Series - D9524A

HP Vectra VL series

HP VECTRA VL410 - P5641A
HP VECTRA VL410 - P5642A
HP VECTRA VL420 - A7591S

HP Surestore CD-Writer 6020 series

HP SURESTORE CD-WRITER PARALLEL 6020EP - C4345A
HP SURESTORE CD-WRITER SCSI 6020ES - C4325A

HP CD-Writer M820 series

HP CD-WRITER PLUS EXTERNAL M820E DRIVE - C4450A

HP CD-Writer 9600 series

HP CD-WRITER EXTERNAL 9600SE DRIVE - C4507A

HP CD-Writer 9500 series

HP CD-WRITER INTERNAL 9510I DRIVE - C4503A

HP CD-Writer 9300 series

HP CD-WRITER INTERNAL 9340I DRIVE - C4492B
HP CD-WRITER INTERNAL 9350I DRIVE - C4493B
HP CD-WRITER PLUS INTERNAL 9300I DRIVE - C4492A
HP CD-WRITER PLUS INTERNAL 9310I DRIVE - C4493A

HP CD-Writer 9200 series

HP CD-WRITER PLUS EXTERNAL 9200E DRIVE - C4458A
HP CD-WRITER PLUS EXTERNAL 9210E DRIVE - C4456A
HP CD-WRITER PLUS INTERNAL 9200I DRIVE - C4457A
HP CD-WRITER PLUS INTERNAL 9210I DRIVE - C4455A

HP CD-Writer 9100 series

HP CD-WRITER INTERNAL 9140I DRIVE - C4459C
HP CD-WRITER INTERNAL 9150I DRIVE - C4460C
HP CD-WRITER PLUS INTERNAL 9100I DRIVE - C4460A
HP CD-WRITER PLUS INTERNAL 9100I DRIVE - C4460B
HP CD-WRITER PLUS INTERNAL 9110I DRIVE - C4459A
HP CD-WRITER PLUS INTERNAL 9110I DRIVE - C4459B
HP CD-WRITER PLUS INTERNAL 9150I DRIVE - C4462-56000

HP CD-Writer 8200 series

HP CD-WRITER EXTERNAL 8220E DRIVE - C4504A
HP CD-WRITER EXTERNAL 8230E DRIVE - C4505A
HP CD-WRITER PLUS 8250I DRIVE - C4464A
HP CD-WRITER PLUS 8250I DRIVE - C4464B
HP CD-WRITER PLUS EXTERNAL 8200E DRIVE - C4454A
HP CD-WRITER PLUS EXTERNAL 8200E DRIVE - C4454B
HP CD-WRITER PLUS EXTERNAL 8210E DRIVE - C4453A
HP CD-WRITER PLUS EXTERNAL 8210E DRIVE - C4453B
HP CD-WRITER PLUS INTERNAL 8200I DRIVE - C4414A
HP CD-WRITER PLUS INTERNAL 8210I DRIVE - C4415A
HP CD-WRITER REFURBISHED EXTERNAL 8220E DRIVE - C4504AR

HP CD-Writer 8100 series

HP CD-WRITER PLUS INTERNAL 8100I DRIVE - C4392A
HP CD-WRITER PLUS INTERNAL 8110I DRIVE - C4398A

HP CD-Writer 7500 series

HP CD-WRITER PLUS 7540I - C4444A
HP CD-WRITER PLUS EXTERNAL 7500E DRIVE - C4412A
HP CD-WRITER PLUS EXTERNAL 7510E DRIVE - C4413A
HP CD-WRITER PLUS INTERNAL 7550I DRIVE - C4410A
HP CD-WRITER PLUS INTERNAL 7570I DRIVE - C4411A

HP CD-Writer 7200 series

HP CD-WRITER PLUS EXTERNAL 7200E DRIVE - C4381A
HP CD-WRITER PLUS INTERNAL 7200I DRIVE - C4380A

HP CD-Writer 7100 series

HP CD-WRITER PLUS EXTERNAL 7100E DRIVE - C4358A
HP CD-WRITER PLUS EXTERNAL 7110E DRIVE - C4366A
HP CD-WRITER PLUS INTERNAL 7100I DRIVE - C4353A
HP CD-WRITER PLUS INTERNAL 7110I DRIVE - C4365A

HP CD4 External CD-Writer series

HP CD4 EXTERNAL CD-WRITER - C9634A
HP CD4 EXTERNAL CD-WRITER - C9635A
HP CD4 EXTERNAL CD-WRITER - C9643A

HP Brand License DVD Writer dvd300 series

DVD Writer dvd300vi - Q2113A
DVD Writer dvd300xe - Q2111A
HP DVD 300E - Q2109A
HP DVD 300I (CLUB) - Q2110A
HP DVD 300I (RETAIL) - Q2108A

HP Brand License DVD Writer dvd200 series

DVD Writer dvd200xi - Q2103A
HP DVD WRITER DVD 200E - Q2099A
HP DVD WRITER DVD 200I - Q2101A
HP DVD WRITER DVD200XE EXTERNAL DRV W/SW - Q2104A

HP Brand License DVD Writer dvd100 series

HP DVD WRITER DVD100I - C9619A

HP Brand License CD-R/CD-RW Discs

HP CD-RW DISC - C4438A