I'm not that familiar with RW media. From the scans I've seen, yours looks alright. I have yet to see RW media that burns anywhere near the best of +/-R's. Should be fine ... if you have problems, then erase and do it again.
Btw ... "quality" and "cheap" media ... there are "cheap" media that will show acceptable to nice looking scans, but there's a lot more to assessing quality of media than just quality scans. Just look at the Ritek G05 thread, and you'll realize it's a must to consider long term reliabilty and integrity of the media when you judge quality. Your initial scan just tells gives you a snapshot of that particular moment. Every media will degrade, some faster than others. The risk with "cheap" (referring to known price-to-quality perception) media is you may run the risk of having to re-burn your data due to marked quality loss in a short amount of time. So, in the end, the "cheap" media .. gets rather expensive. Just my $.02. Good luck.