As mentioned in my response to your descriptions (in another sub-forum) of the problems with your DMR-EZ47V, if your recorder has a failed laser assembly this is the end of that recorder's problem--it's time to move beyond the design flaws and bugs of Panasonic EZ series combo recorders. With the current field of "garden-variety" combo recorders there is no good reason not to consider an outstanding Hard Drive/DVD recorder.
I own two of the earlier variants of the Magnavox ZV457MG9 combo recorder. The older variant is the ZV450MW8 manufactured in March 2007, the newer variant is the ZV450MW8A manufactured in August 2008. Both are decent, but overpriced, "garden-variety" combo recorders with good ATSC and clear QAM tuners. Of the two, the "A" version has more user-friendly menus and 12 timer-scheduled programs whereas the non-A version has somewhat clunky menus and only 8 timer-scheduled programs. The "W" in the model name indicates a model is designated for initial sale by WalMart and the "8" is the 2008 model year designation. A letter following the model year designation indicates a design with "minor" revisions.
From what I've read the ZV457MG9 is similar to the ZV450MW8A model but adds HDMI output capability, a "major" revision requiring a new model number. The "G" indicates that this product is not exclusive to WalMart, being produced for the general marketplace and the "9" indicates the 2009 model year.
Purchasing "garden-variety" combo recorders that DO NOT HAVE HARD DRIVES is not cost-effective for serious recording or even for dubbing videotaped recordings to DVD.
The Magnavox H2160MW9A HDD/DVD model is much to be preferred to any current model combo recorders. (For dubbing connect your VCR to a 2160 input, transfer the material to the hard drive, edit the material if you like and high-speed dub the material to DVD.) There are more than 30 timer scheduled programs available with the Magnavox 2160.
The Magnavox 2160 may be purchased for as little as $159.99 (including shipping) for "factory refurbished" models through J&R.com (when available), or new models for $228 through walmart.com.
There is a learning curve necessary to use the Magnavox 2160. Many lazy purchasers (with the "I don't need no stinkin' Owner's Manual" mentality) give up learning how to use the 2160 and so hundreds of them are returned in almost new condition. Other purchasers make the effort to learn how to use the 2160 but encounter the 2160 "A" model's dubbing, formatting, finalizing bug (related to the full-time hard drive recording buffer). Many return these "A" models without so much as visiting the AVS Forum to find that pressing the remote control's SOURCE button to temporarily select the "L3" setting is the workaround for this bug. These 2160 returns have usually had little use.
My three 2160 "refurbs" arrived in almost new condition. (One of my "refurbs" was used almost entirely as a DVD player, a no-no for informed users that prefer to use a dedicated DVD player to play DVDs--and doing so prolongs the useful life of the 2160 recorder's laser assembly.) Upon arrival one of my 2160 models had been powered on for 9 hours with no laser write time and 14 minutes of laser read time; another had been powered on 12 hours with no laser write time and 6 minutes of laser read time; and another had been powered on 296 hours with 31 minutes of laser write time and 5:08 hours of laser read time.
If you will do some reading--start with the first post in Wajo's sticky thread--you will find that post is the gateway to a wealth of information concerning the Magnavox 2160 and earlier 2080 and Philips 3575 and 3576 hard drive recorders: