Rating: 
Summary: Great, but not so great
Review: OVERALL: 92%
Great design, but weak power. You get good battery life. Fast file transfer. Kind of ugly. price goes way up for expadable memory. Not bAD though. Works like a charm.
Rating:
Summary: Static?
Review: I received this product as a contest prize from work and immediately tore the package open and started playing with it. I had previously been using a RIO One, with no problems, and was looking forward to see how Sonic Blue's products had improved.
As with the Rio One the menu's are very easy to navigate through and give such easy explanation that I didn't have to read the manual. I did the Firmware update just because. The software has been easy to use and overall I've not had any problems. Since I ride a mountain bike, the plastic case and armband keep this product from getting a 5 star rating. I'm always apprehensive about it falling out of the armband, but the mishaps I've had don't ever affect it. Also, if you turn the backlight off the static on the tuner goes away.
Rating: 
Summary: Awsome MP3 Player, FM tuner sucks
Review: + Great MP3 sound quality
+ Great battery life
+ Fairly easy to use- FM tuner sucks
- Control buttons easy to hit by accident
Rating:
Summary: Rio Sport has the life expectancy of a Verizon Cell Phone
Review: I bought my Rio Sport last Christmas for my girlfriend. Somehow it became mine. I think it has the same life expectancy as a cell phone. I have found that it can't be worn on the arm with my school back pack, because of the inability to take off of the back pack without impacting the mp3 player. It can't be placed in a front pocket, because of sensitive buttons. So, therefore my only place left is to either tie it around my neck or latch it's back to my belt loop. This is fine but the latch is like a caribeaner without a lock. It doesn't work. You are walking along and the next thing you know is your mp3 three player has fallen to the ground. Now the down volume button no longer works, and the play button is losing it's cushioned feel. I am not a runner, or an active person, just a student who likes to walk. However, walking can be very dangerous to the mp3 player. I would suggest a locking caribeaner, a USB 2.0 notification about this product in non-warranty type of writing, and larger memory cards.
Rating:
Summary: Good, but don't build up your hopes
Review: I guess ever since the Ipod was released I've been thinking of getting myself one, but as I've said a number of times: you get what you paid for. This portable MP3 player will provide you with 64 MB worth of MP3s storage out of the box (though it can be expanded up to half a Gig), which may or may not go a long way for you depending on the quality and size of the songs you've got stored to dump on it. Can you complain? Not really! Positives:
1) It's cheap. For what you get, it's almost as cheap as it gets.
2) The playback quality is pretty decent. Not that you can plug it into anything else but its own earbuds, but...
3) The design is very ergonomic (nice hand fit), plus it offers extra goodies such as a timer, for you to check on your exercise time. Negatives:
1) The software for uploading music into it is propietary (to my knowledge, not compatible with, say MusicMatch Jukebox) and the real bad part about it is that it's clunky. I personally dislike the interface very much.
2) As some other reviewer said, the radio receiver is very poor. I am sure you can do better on a separate portable arm radio receiver. If you balance the pros and cons, I'd recommend it but beware: don't build up your hopes too high... you could crash if you do! In the end, remember you're not paying too much for this baby.
Rating:
Summary: Pretty good, although a few flaws
Review: What I like: Compact size. MP3 sound quality is good. Add a cheap 256Mb flash card, and get many hours of music on it. Fairly rugged -- I've dropped it a number of times, and it's still working fine (cross fingers). FM radio is passable for very strong signals. Bundled ear plugs are perhaps the first that actually fit my ears, and sound half-decent (but see below). What could be improved. FM reception not great -- don't buy this for the radio. Unlike the rest of the unit, the ear plugs are not water-resistant. If you use this while working out, they will soon soak up the sweat and sound like garbage. The menu controls on the front are prone to being accidentally pressed. I wish they made them recessed and a little more fool-proof. Would prefer to directly drop files on this via Win XP, rather than forced to use their software. Some MP3's freeze the controls. The only way to recover is to power down and up.
Rating: 
Summary: worthless
Review: I bought this mp3 player hoping to replace a Rio 500 that I had received from a friend a few years back. I was hoping to get one that held a few more songs, was a bit cuter, and had the arm strap so I could listen while I worked out.
At first, I was happy with my new Rio Sport. It seemed to work well, the sound was good, and I liked having the arm strap.
Then, about 3 weeks after I bought it, it started shutting off then on again whenever I tried to play a song. I hadn't uploaded any new songs on it recently, so if there is some trouble with corrupt mp3s (I don't know, just guessing) that wasn't the problem. I hadn't dropped it or gotten it wet. I used it every day and cared for it well, as I really did enjoy having it.
Eventually, the Rio Sport stopped even turning on. Now it sits on my shelf, completely dead, and I'm back to my Rio 500. I'm angry that I spent the 90 bucks for a cute piece of junk.
Maybe you'll have better luck, as most people seem to like the Rio Sport. I just know I'll never buy a new Rio again.
Rating: 
Summary: Perfect For My Needs
Review: You need to understand that I'm not a techie. I was looking for something light & small that I could strap to my arm for working out. I researched a few brands and this one had the best reviews. I also wanted the option of having a radio and this one is ok. With that said, it works when I'm outside but not inside the gym. Without the addition of the extra sound card, I usually get about 15-18 songs. You might want to purchase the extra card. Some people have complained that they had a hard time finding it but it was available at the time of my purchase. I have had no technical problems. I listen about 1 hour for 4 days a week and I only replace the batteries about once a month (which I thought was pretty good). The software for downloading is simple and loading/reloading songs is easy. I consider myself the average consumer and I am very pleased with my Rio.
Rating:
Summary: SDMI Almost
Review: On my second player in 3 months, left the first in a hotel room with a 256 meg sd card :( Compgeeks to the rescue. I also have a rio SP150 and love the directory support that offers but the S30s doesn't. Sound is good and after upgrade to 1.84 F/W, features are solid. Except latest copyprotected supposed wma files from liquid audio. Early music purchases there were real wma files with unlimited transfers to sdmi devices. Latest download (matchbox 20) came advertised as wma but was actually a .asf file. And it now contains an unadvertised limit of 3 transfers to sdmi device. Of course these are used up without hearing a note as the device refuses to play .asf's. Are you listening Rio and Liquid?
buymusic.com has better selection and still has wma files. And while some of these have a limit on the number of transfers, at least they tell you before you pay. Only problem besides no asf support concerns static electricity.
If you want to have some fun, try folding laundry with the headphone cord dangling across your chest. Especially silk.
The audible static is loud and the unit locks up a lot. Usually a switch off/on cycle cures it but sometimes you have to take the battery out just to get the unit unfrozen. At least it seems to have no long term ill effects. Maybe the future holds a F/W upgrade to fix .asf. If you only play mp3's buy this player and you will be happy.
Rating:
Summary: Awesome player
Review: I bought this player as my second/extra MP3 player. I wanted this becuase it is small and protable unlike my big 15 gig Archos Recorder. I choose it due to the price and good reviews. As i opened the box the directions were very clear and concise. the player works fine and uploading is very easy. The one thing to make sure to do is push the USB cord into the player all the way. i didn't want to force it in but in the end you have to, to make sure the connection is good. The features are awesome, radio, EQ, and stopwatch. Pros
price
size(small)
expandibility
ok battery life
features
easy setup Cons
bad earphones
the case doesn't fit perfectly
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