My laptop now can't play DVD but plays cds, mp3, vcd

use this.

required to replace lance of your laptop's DVD player. contact service center

According to the user manual, the following DVD media you can record with this unit are:

RECORDING: TYPES OF DISCS YOU CAN USE FOR RECORDING

DVD+R 2.4x, 4x, or 8x ONLY; DVD+RW 2.4x and 4x ONLY.

NOTES:
It is NOT possible to record on CD-R or CD-RW discs.
IMPORTANT: It is NOT possible to record content that is copy-protected. This is usually true for most pre-recorded DVD discs and most pre-recorded VHS tapes.

PLAYBACK: TYPES OF DISCS YOU CAN PLAY

DVD discs - DVD movie discs (DVD-ROM); DVD+R; DVD+RW; DVD-RW (must be recorded using video mode or VM); DVD-R (must be recorded using video mode or VM and must be finalized).
CDs (Audio CDs, CD-R, CD-RW) - Audio CDs contain musical or sound content only. mp3 discs are CDs (CD-R or CD-RW)
that contain mp3 files. This product also plays CDs that contain JPEG files and Multisession CDs.
Video CD (VCD) and Super Video CD (S-VCD) discs - Like DVD video discs, VCDs contain picture and sound content. The difference is the amount of information that can be stored on the disc.
VCDs typically have lower picture and sound quality than DVD discs.
Super Video CDs (S-VCDs) can be used to record up to 70 minutes of digital sound and video, with MPEG-2 standard video and MPEG-1 standard audio-but you must use DVD+R or DVD+RW discs to record on your DVD/VCR not S-VCDs.
Additionally, S-VCD disc compatibility is dependent on which MPEG coding software, disc design software, and disc writer software are used; and the discs themselves.

(The above information is extracted from the user manual for this particular model and is a guide only)

I find it very strange that the user manual does not provide any information about DVD-R recording since this is a DVD recorder. I guess you could try those types of discs in it, otherwise it will playback finalised DVD-R discs recorded/burned in another machine.

I assume you have the original manual for this unit. If not, you may be able to download it free from various sites. (retrevo may have it but they may ask you for email address prior to downloading)

I hope the above information helps a tiny bit with regard to DVD formats for this unit.

As you are saying that you have a Lg combo drive earlier it plays both Vcd or Dvdbut now it only plays Vcd. Your Combo drive lens must be weaken. So you should try using a lens cleaner Cd or its better to buy a new Dvd-Rom it plays or write both cds or dvds.
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Are you sure yours is a DVD player? It could only be a CD-CD writer, which will NOT play DVDs.
Open your control panel ->system->hardware->device manager and click on the DVD/CD-ROM drives icon. The listed devices will tell you if you really have a dvd player or not. If you do really have a dvd player, try a different dvd

dear sir good day please test the cd on an other lab top so you will know the problem and i think it will come from the data cable of your cd thank you

Do you get any kind of error when you try to play a dvd or burn cds to clarify it plays Music CDs ? and regular cds just not dvds ?

it means that your dvd lens is already damage. change your dvd player.

well.. philips dvd 622 is a good dvd player.. but it won paly any pirated versions of dvd's ..though u download it from net..check for the good versions. also check whether is a rip or zip file k.

Try a lens cleaner cd, as when the lens gets misaligned or if it's quite old, it will find it harder to read a DVD as the tracks are much closer together than that of a VCD as they are cd's and their tracks are wider apart and easier to read.