Please Help: dvd error message (HP DVD640i)

This thread is about the HP DVD640i. Click here to see full specs

Hello all! I am a newbie to this forum, as well as burning DVDs. I have experience burning cds and experience with computers in general. I got a HP DVD640i (maybe 640e?) burner with lightscribe technology. I installed it about 2 weeks ago and was able to make a few DVDs. Im using Phillips DVD-R 16x discs. I have not been able to make any DVDs as of a few days ago. I should mention im using DVD Flick 1.3.0.4. build 726. If theres a better software I would love to hear about it.
Heres the log:

I 16:10:00 ImgBurn Version 2.4.2.0 started!
I 16:10:00 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)
I 16:10:00 Total Physical Memory: 2,088,112 KB - Available: 1,554,676 KB
I 16:10:00 Initialising SPTI...
I 16:10:00 Searching for SCSI / ATAPI devices...
I 16:10:00 Found 1 DVD±RW!
I 16:10:01 Operation Started!
I 16:10:01 Building Image Tree...
I 16:10:01 Checking Directory Depth...
I 16:10:01 Calculating Totals...
I 16:10:01 Preparing Image...
I 16:10:01 Checking Path Length...
I 16:10:01 Contents: 6 Files, 2 Folders
I 16:10:01 Size: 1,500,600,320 bytes
I 16:10:01 Sectors: 732,715
I 16:10:01 Image Size: 1,501,200,384 bytes
I 16:10:01 Image Sectors: 733,008
I 16:10:01 Operation Successfully Completed! - Duration: 00:00:00
I 16:10:01 Operation Started!
I 16:10:01 Source File: -==//[BUILD IMAGE]/==-
I 16:10:01 Source File Sectors: 733,008 (MODE1/2048)
I 16:10:01 Source File Size: 1,501,200,384 bytes
I 16:10:01 Source File Volume Identifier: little einsteins
I 16:10:01 Source File Application Identifier: IMGBURN V2.4.2.0 - THE ULTIMATE IMAGE BURNER!
I 16:10:01 Source File Implementation Identifier: ImgBurn
I 16:10:01 Source File File System(s): ISO9660, UDF (1.02)
I 16:10:01 Destination Device: [0:0:0] HP DVD Writer 640v EOU5 (D (ATA)
I 16:10:01 Destination Media Type: DVD-R (Disc ID: CMC MAG. AM3) (Speeds: 2.4x, 4x, 8x)
I 16:10:01 Destination Media Sectors: 2,298,496
I 16:10:01 Write Mode: DVD
I 16:10:01 Write Type: DAO
I 16:10:01 Write Speed: 4x
I 16:10:01 Link Size: Auto
I 16:10:01 Test Mode: No
I 16:10:01 OPC: No
I 16:10:01 BURN-Proof: Enabled
I 16:10:02 Filling Buffer... (40 MB)
I 16:10:11 Writing LeadIn...
I 16:10:23 Writing Session 1 of 1... (1 Track, LBA: 0 - 733007)
I 16:10:23 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 733007)
I 16:15:02 Synchronising Cache...
I 16:15:41 Operation Successfully Completed! - Duration: 00:05:39
I 16:15:41 Average Write Rate: 5,254 KB/s (3.8x) - Maximum Write Rate: 5,566 KB/s (4.0x)
I 16:15:41 Cycling Tray before Verify...
W 16:15:47 Waiting for device to become ready...

* ImgBurn says " Device Not Ready (Medium Not Ready)"

Complete is 100% done. Buffer and Device Buffer 0% done. Hitting X asks "do you really want to cancel?".

DvD Flick is stoped at: Finalize "Finalizing. Burning to Disk"

Here is where it stops at. Any words of advice?
Thanks in advance!

Recommended blank media would be Verbatim, (widely available) or Taiyo Yuden, (mostly only available online). General rule of thumb is to burn at half the rated speed of the blank disc, for example 16X burn @8X. Your burn completed, it is the verify that did not complete from what I see. Does this play? FAVC & ConvertXtoDvd are a couple of other programs. I am not up on different drives, how old they are or if there is a firmware update for them, so hopefully somebody with that experience will come alog.

Does not play in any DVD player but does have the files on the disk.

Are the discs readable on the PC? Sounds like a burn issue.

I would start with a different brand/type of media as it's the easiest thing to test. Verbatim or Taio Yuden are preferred.

You can also test the files before burning to verify your software is creating a valid output.