I want to use it on my asus tablet witch has 2-USB ports

windows 10?
post the model number of this player.
is the player connected to its power pack, plugged in?
try all USB ports? or is it using eSATA port, no port type stated.
USB, when plugged in does windows (is it windows) go BINGBONG
sound, telling you USB is not dead?
does it show up in device manager
does it show up in Disk manager?
last would be "This PC" local explorer working and see a disk there.
play what.
CD-DCA
Home burned, MP3 music on CD or DVD?
store bought DVD ,say starwars DVD real not a RIP.
always test with real CD/dVD first, not burned copies .
then last we check that DVD-R worrs or CD-r burned disks play.
what player are you using,? I use VLC , only.

No, that is not possible. That's because you need an ASUS-specific charging cable to charge either the tablet or the dock/keyboard (or the docked combination of the two). You can however use any charger with a USB-port that outputs at least 2 Amperes. So you need to buy a new ASUS charging cable (and a suitable charger, if you don't have one already)

It would be better to use the power adapter because the USB port can only output 2 amps.

You need to get the Asus Transformer Keyboard Dock. It has 2 USB port built in.

Buy it here on amazon.

Otherwise you need to a microSD card.

CPU P5KPL-AM Valuable Intel G31 uATX solution with FSB overclocking 1600MHz!
- Intel® Core™2 Quad Ready
- Intel® 45nm CPU Ready
- FSB 1600(O.C.)/1333/1066/800 MHz
- Intel® G31/ICH7
- Dual channel DDR2 1066(O.C.)/800/667
- EZ Flash2 & CrashFree BIOS3
- 8 Channel High Definition Audio
Intel® Socket 775 Core™2 Quad/Core™2 Extreme/Core™2 Duo/Pentium® D/Pentium® 4/Celeron® E1000 Series and Celeron 400 Series Intel® Hyper-Threading Technology ready
*Refer to www.asus.com for Intel CPU support list
Chipset Intel® G31 Intel ICH7
Front Side Bus 1600*/1333/1066/800 MHz (*1600 is overclock speed) Memory 2 x DIMM, Max. 4 GB, DDR2 1066(O.C.)/800/667 Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*Overclock speed
**Refer to www.asus.com or user manual for Memory QVL (Qualify Vendor List)
***When installing total memory of 4GB capacity or more, WindowsR 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended. Expansion Slots 1 x PCIe x16
1 x PCIe x1
2 x PCI
VGA Integrated Intel Graphics Media Accelerator (Intel® GMA 3100)
Max. resolution:2048x1536X32bpp, Horizontal:127.5KHz Vertical:85Hz Storage Southbridge
1 xUltraDMA 100/66/33
4 xSATA 3 Gb/s ports
LAN Realtek RTL8102EL 100/10 LAN
Audio VIA VT1708B 8 -Channel High-Definition Audio CODEC
Anti-Pop Function
Jack-detect & Multi-Streaming
Support S/PDIF Out connector USB 8 USB 2.0 ports (4 ports at mid-board, 4 ports at back panel) Overclocking Features SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 600MHz at 1MHz increment
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)
Special Features ASUS MyLogo 2
ASUS EZ Flash 2
ASUS CrashFree BIOS 3
ASUS Q-Fan
Back Panel I/O Ports 1 x Parallel
1 x VGA
1 x PS/2 Keyboard
1 x PS/2 Mouse
1 x LAN(RJ45) port
4 x USB 2.0/1.1
1 x COM port
8 -Channel Audio I/O
Internal I/O Connectors 2 x USB connectors support additional 4 USB ports
1 x Floppy disk drive connector
1 x IDE connector
4 x SATA connectors
1 x internal speaker connector
1 x S/PDIF Out connector
1 x CPU/ Chassis/ Power Fan connector
1 x Front panel High Definition audio connector
1 x Chassis Intrusion connector
1 x CD audio in connector
24-pin EPS 12V Power connector
4-pin ATX 12V Power connector
1 x System Panel connector
BIOS 8 Mb Flash ROM
DMI 2.0
AMI BIOS
PnP
WfM 2.0
SM BIOS 2.5
ACPI 2.0
Manageability WOL,PXE,RPL,WOR ,PME Wake Up Accessories User's manual
1 x UltraDMA 133/100/66 cable
1 x Floppy disk drive cable
1 x SATA cable
1 x SATA power cable
I/O Shield
Support Disc Drivers
ASUS PC Probe II
Anti-virus software (OEM version)
ASUS Update
Form Factor uATX Form Factor
9.6 inch x8 inch ( 24.4 cm x 20.3 cm )
hope this helps

The Asus EEE units come with a Restore Disc. all you will need to do is plug in an EXTERNAL USB CD/DVD DRIVE, and load the disc on bootup (cold start) it should start running the recovery for you and will destroy all data on the drive. If you dont have your Restore Cd anymore asus did have a few models on the net for download ar you can request a restore cd from ASUS.COM under the contact us page
Hope this helps

It should have a quick installation guide, a USB "Y" cable and a disc with Turbo Engine, ASUS Live Firmware Update, and Power2Go on it. The drive does not plug into a wall outlet; rather, it pulls its power from two USB 2.0 ports on your computer. This is a nice feature if you use a laptop.
Typically you would run the software and then after (or sometimes during you will be prompted), the software is installed you just plug it in and the computer should recognize it. Should be pretty easy. If it doesn't work that way simply uninstall the software, plug the unit into you computer and then run the software. If there's no prompt telling you to plug it in during the install then it can only be one of the 2 ways. I would start with the unit unplugged and wait for a prompt or for the disk to finish, if you don't have a guide.
Hope this helps

http://dlcdnet.asus.com/pub/ASUS/mb/socket939/A8V-VM/e2421-a8v_vm.pdf

I thnik the Front USB ports are only Ver. 1.1. as to the ports at the back are ver. 2.O. so it does not read the external drive. this is hardware config. you might not be able to fix this.

if the tablet pc has a usb port you can copy the contents of the cd to a usb flash drive, plug the flash drive into the tablet pc and run the setup file on the flash drive to install the webcam software to the tablet pc. Another option would be if the tablet pc has internet access go to the webcam manufacturers website and download the drivers and software for the webcam to you tablet pc desktop and install them that way.